Blackfoot River near Bonner MT

Name: USGS 12340000: Blackfoot River near Bonner MT — streamflow and gauge readings
Creator: U.S. Geological Survey
License: https://www.usgs.gov/information-policies-and-instructions/copyrights-and-credits

USGS 12340000 · Montana · reports discharge (live), gauge height, water temperature

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Good: Good trout conditions: fish normally

39.9°F now, 39.9°F at most in 24 hours: under Montana FWP's 68°F line. Montana Fish, Wildlife & Parks
Flow 648 ft³/s: normal for Nov 5, over 92 years of USGS record. U.S. Geological Survey
Cold water, 39.9°F. NWS: cold shock is dangerous at 50-60°F and colder; “Always wear a life jacket in and around the water.” National Weather Service
Below NWS action stage (official NWS category). That is not a statement that wading is safe. National Weather Service

What the agencies suggest

Carry a stream thermometer. Carry a pocket thermometer to monitor water temperature National Park Service

General guidance from the readings and the published lines named above, not a fishing forecast. Local rules and closures come first.

Discharge: 648 ft³/s
Gauge height: 2.15 ft
Water temp: 39.9°F (4.4°C)

Reading Nov 5, 6:30 PM MST · provisional USGS data

Normal for Nov 5 Steady · 24 h Below NWS action stage

Flow and the normal range

Discharge · last 7 days

Discharge, about hourly
Normal for the date: middle half (25th–75th percentile) of daily mean flow, 92+ years of record
Latest: 648 ft³/s at Nov 5, 6:30 PM MST

USGS provisional data may be revised. Source: USGS instantaneous values.

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised. Missing hours or days are not filled in.
Time	Discharge (ft³/s)	Gauge height (ft)	Water temp (°F)	Normal, 25th–75th (ft³/s)
Nov 5, 6:30 PM MST	648	2.15	39.9	540–724
Nov 5, 5:30 PM MST	648	2.15	39.7	540–724
Nov 5, 4:30 PM MST	648	2.15	39.7	540–724
Nov 5, 3:30 PM MST	648	2.15	39.9	540–724
Nov 5, 2:30 PM MST	641	2.14	39.7	540–724
Nov 5, 1:30 PM MST	648	2.15	39.6	540–724
Nov 5, 12:30 PM MST	641	2.14	39.4	540–724
Nov 5, 11:30 AM MST	648	2.15	39.2	540–724
Nov 5, 10:30 AM MST	648	2.15	39	540–724
Nov 5, 9:30 AM MST	648	2.15	39	540–724
Nov 5, 8:30 AM MST	648	2.15	39	540–724
Nov 5, 7:30 AM MST	648	2.15	39	540–724
Nov 5, 6:30 AM MST	648	2.15	39	540–724
Nov 5, 5:30 AM MST	648	2.15	39	540–724
Nov 5, 4:30 AM MST	648	2.15	39.2	540–724
Nov 5, 3:30 AM MST	648	2.15	39.2	540–724
Nov 5, 2:30 AM MST	648	2.15	39.2	540–724
Nov 5, 1:30 AM MST	648	2.15	39.2	540–724
Nov 5, 12:30 AM MST	655	2.16	39.2	540–724
Nov 4, 11:30 PM MST	648	2.15	39.2	540–727
Nov 4, 10:30 PM MST	648	2.15	39.4	540–727
Nov 4, 9:30 PM MST	648	2.15	39.4	540–727
Nov 4, 8:30 PM MST	648	2.15	39.4	540–727
Nov 4, 7:30 PM MST	648	2.15	39.6	540–727
Nov 4, 6:30 PM MST	655	2.16	39.6	540–727
Nov 4, 5:30 PM MST	655	2.16	39.6	540–727
Nov 4, 4:30 PM MST	655	2.16	39.6	540–727
Nov 4, 3:30 PM MST	655	2.16	39.6	540–727
Nov 4, 2:30 PM MST	655	2.16	39.6	540–727
Nov 4, 1:30 PM MST	655	2.16	39.4	540–727
Nov 4, 12:30 PM MST	655	2.16	39.4	540–727
Nov 4, 11:30 AM MST	655	2.16	39.2	540–727
Nov 4, 10:30 AM MST	655	2.16	39	540–727
Nov 4, 9:30 AM MST	662	2.17	39	540–727
Nov 4, 8:30 AM MST	662	2.17	39	540–727
Nov 4, 7:30 AM MST	662	2.17	39	540–727
Nov 4, 6:30 AM MST	662	2.17	39	540–727
Nov 4, 5:30 AM MST	662	2.17	39.2	540–727
Nov 4, 4:30 AM MST	662	2.17	39.4	540–727
Nov 4, 3:30 AM MST	662	2.17	39.6	540–727
Nov 4, 2:30 AM MST	662	2.17	39.7	540–727
Nov 4, 1:30 AM MST	662	2.17	39.9	540–727
Nov 4, 12:30 AM MST	662	2.17	39.9	540–727
Nov 3, 11:30 PM MST	662	2.17	40.1	539–711
Nov 3, 10:30 PM MST	662	2.17	40.3	539–711
Nov 3, 9:30 PM MST	662	2.17	40.3	539–711
Nov 3, 8:30 PM MST	669	2.18	40.5	539–711
Nov 3, 7:30 PM MST	662	2.17	40.6	539–711
Nov 3, 6:30 PM MST	669	2.18	40.8	539–711
Nov 3, 5:30 PM MST	669	2.18	41.2	539–711
Nov 3, 4:30 PM MST	669	2.18	41.4	539–711
Nov 3, 3:30 PM MST	669	2.18	41.4	539–711
Nov 3, 2:30 PM MST	662	2.17	41.5	539–711
Nov 3, 1:30 PM MST	669	2.18	41.4	539–711
Nov 3, 12:30 PM MST	669	2.18	41	539–711
Nov 3, 11:30 AM MST	669	2.18	40.8	539–711
Nov 3, 10:30 AM MST	669	2.18	40.6	539–711
Nov 3, 9:30 AM MST	669	2.18	40.5	539–711
Nov 3, 8:30 AM MST	669	2.18	40.5	539–711
Nov 3, 7:30 AM MST	669	2.18	40.5	539–711
Nov 3, 6:30 AM MST	669	2.18	40.6	539–711
Nov 3, 5:30 AM MST	676	2.19	40.6	539–711
Nov 3, 4:30 AM MST	669	2.18	40.8	539–711
Nov 3, 3:30 AM MST	676	2.19	41	539–711
Nov 3, 2:30 AM MST	669	2.18	41.4	539–711
Nov 3, 1:30 AM MST	669	2.18	41.7	539–711
Nov 3, 12:30 AM MST	669	2.18	41.9	539–711
Nov 2, 11:30 PM MST	669	2.18	42.1	540–716
Nov 2, 10:30 PM MST	676	2.19	42.3	540–716
Nov 2, 9:30 PM MST	669	2.18	42.3	540–716
Nov 2, 8:30 PM MST	669	2.18	42.4	540–716
Nov 2, 7:30 PM MST	676	2.19	42.8	540–716
Nov 2, 6:30 PM MST	669	2.18	43	540–716
Nov 2, 5:30 PM MST	676	2.19	43.3	540–716
Nov 2, 4:30 PM MST	676	2.19	43.3	540–716
Nov 2, 3:30 PM MST	683	2.2	43.5	540–716
Nov 2, 2:30 PM MST	676	2.19	43.5	540–716
Nov 2, 1:30 PM MST	669	2.18	43	540–716
Nov 2, 12:30 PM MST	676	2.19	42.4	540–716
Nov 2, 11:30 AM MST	669	2.18	42.1	540–716
Nov 2, 10:30 AM MST	669	2.18	41.9	540–716
Nov 2, 9:30 AM MST	676	2.19	41.7	540–716
Nov 2, 8:30 AM MST	669	2.18	41.7	540–716
Nov 2, 7:30 AM MST	676	2.19	41.7	540–716
Nov 2, 6:30 AM MST	676	2.19	41.9	540–716
Nov 2, 5:30 AM MST	676	2.19	41.9	540–716
Nov 2, 4:30 AM MST	676	2.19	42.1	540–716
Nov 2, 3:30 AM MST	676	2.19	42.1	540–716
Nov 2, 2:30 AM MST	669	2.18	42.1	540–716
Nov 2, 1:30 AM MST	669	2.18	42.1	540–716
Nov 2, 12:30 AM MST	669	2.18	42.1	540–716
Nov 1, 11:30 PM MST	669	2.18	42.3	539–711
Nov 1, 10:30 PM MST	669	2.18	42.3	539–711
Nov 1, 9:30 PM MST	662	2.17	42.4	539–711
Nov 1, 8:30 PM MST	662	2.17	42.4	539–711
Nov 1, 7:30 PM MST	662	2.17	42.4	539–711
Nov 1, 6:30 PM MST	662	2.17	42.6	539–711
Nov 1, 5:30 PM MST	662	2.17	42.6	539–711
Nov 1, 4:30 PM MST	662	2.17	42.6	539–711
Nov 1, 3:30 PM MST	662	2.17	42.4	539–711
Nov 1, 2:30 PM MST	655	2.16	42.4	539–711
Nov 1, 1:30 PM MST	662	2.17	42.4	539–711
Nov 1, 12:30 PM MST	662	2.17	42.1	539–711
Nov 1, 11:30 AM MST	655	2.16	41.9	539–711
Nov 1, 10:30 AM MST	655	2.16	41.7	539–711
Nov 1, 9:30 AM MST	655	2.16	41.7	539–711
Nov 1, 8:30 AM MST	655	2.16	41.5	539–711
Nov 1, 7:30 AM MST	648	2.15	41.7	539–711
Nov 1, 6:30 AM MST	655	2.16	41.7	539–711
Nov 1, 5:30 AM MST	655	2.16	41.7	539–711
Nov 1, 4:30 AM MST	648	2.15	41.9	539–711
Nov 1, 3:30 AM MST	655	2.16	41.9	539–711
Nov 1, 2:30 AM MST	655	2.16	42.1	539–711
Nov 1, 1:30 AM MST	655	2.16	42.1	539–711
Nov 1, 1:30 AM MDT	655	2.16	42.1	539–711
Nov 1, 12:30 AM MDT	655	2.16	42.1	539–711
Oct 31, 11:30 PM MDT	655	2.16	42.1	537–702
Oct 31, 10:30 PM MDT	655	2.16	42.3	537–702
Oct 31, 9:30 PM MDT	655	2.16	42.4	537–702
Oct 31, 8:30 PM MDT	655	2.16	42.6	537–702
Oct 31, 7:30 PM MDT	655	2.16	42.6	537–702
Oct 31, 6:30 PM MDT	655	2.16	42.8	537–702
Oct 31, 5:30 PM MDT	655	2.16	43	537–702
Oct 31, 4:30 PM MDT	655	2.16	42.8	537–702
Oct 31, 3:30 PM MDT	655	2.16	42.8	537–702
Oct 31, 2:30 PM MDT	662	2.17	42.3	537–702
Oct 31, 1:30 PM MDT	662	2.17	41.9	537–702
Oct 31, 12:30 PM MDT	662	2.17	41.7	537–702
Oct 31, 11:30 AM MDT	662	2.17	41.5	537–702
Oct 31, 10:30 AM MDT	662	2.17	41.5	537–702
Oct 31, 9:30 AM MDT	662	2.17	41.5	537–702
Oct 31, 8:30 AM MDT	662	2.17	41.5	537–702
Oct 31, 7:30 AM MDT	662	2.17	41.7	537–702
Oct 31, 6:30 AM MDT	662	2.17	41.7	537–702
Oct 31, 5:30 AM MDT	662	2.17	41.9	537–702
Oct 31, 4:30 AM MDT	662	2.17	41.9	537–702
Oct 31, 3:30 AM MDT	662	2.17	42.1	537–702
Oct 31, 2:30 AM MDT	669	2.18	42.1	537–702
Oct 31, 1:30 AM MDT	669	2.18	42.3	537–702
Oct 31, 12:30 AM MDT	669	2.18	42.3	537–702
Oct 30, 11:30 PM MDT	669	2.18	42.3	527–707
Oct 30, 10:30 PM MDT	669	2.18	42.3	527–707
Oct 30, 9:30 PM MDT	669	2.18	42.3	527–707
Oct 30, 8:30 PM MDT	669	2.18	42.3	527–707
Oct 30, 7:30 PM MDT	669	2.18	42.1	527–707
Oct 30, 6:30 PM MDT	676	2.19	42.1	527–707
Oct 30, 5:30 PM MDT	676	2.19	42.1	527–707
Oct 30, 4:30 PM MDT	676	2.19	41.9	527–707
Oct 30, 3:30 PM MDT	676	2.19	41.7	527–707
Oct 30, 2:30 PM MDT	676	2.19	41.5	527–707
Oct 30, 1:30 PM MDT	676	2.19	41	527–707
Oct 30, 12:30 PM MDT	676	2.19	40.6	527–707
Oct 30, 11:30 AM MDT	683	2.2	40.3	527–707
Oct 30, 10:30 AM MDT	676	2.19	40.1	527–707
Oct 30, 9:30 AM MDT	683	2.2	40.3	527–707
Oct 30, 8:30 AM MDT	683	2.2	40.3	527–707
Oct 30, 7:30 AM MDT	683	2.2	40.3	527–707
Oct 30, 6:30 AM MDT	683	2.2	40.5	527–707
Oct 30, 5:30 AM MDT	683	2.2	40.6	527–707
Oct 30, 4:30 AM MDT	683	2.2	41	527–707
Oct 30, 3:30 AM MDT	683	2.2	41.2	527–707
Oct 30, 2:30 AM MDT	683	2.2	41.4	527–707
Oct 30, 1:30 AM MDT	683	2.2	41.5	527–707
Oct 30, 12:30 AM MDT	690	2.21	41.9	527–707
Oct 29, 11:30 PM MDT	683	2.2	42.1	525–686
Oct 29, 10:30 PM MDT	690	2.21	42.3	525–686
Oct 29, 9:30 PM MDT	690	2.21	42.4	525–686
Oct 29, 8:30 PM MDT	690	2.21	42.4	525–686
Oct 29, 7:30 PM MDT	690	2.21	42.6	525–686

Normal for Nov 5: 540–724 ft³/s (middle half of 92 years of record). Now: 648 ft³/s, normal.

Normal for this date. 648 ft³/s is between the 25th and 75th percentiles of daily mean flow for Nov 5 at this gauge over 92 years of record (1899–2026): 10th 467, 25th 540, median 624, 75th 724, 90th 897 ft³/s.

Daily means on record for Nov 5: lowest 361 ft³/s, highest 1,560 ft³/s.

Classes as USGS labels them (hyswap: flow categories (WDFN_stats schema) (U.S. Geological Survey) ); percentiles from the USGS daily statistics (U.S. Geological Survey) (approved daily means; the reading is provisional and instantaneous).

Steady over 24 hours (−1.1% discharge). Rising or falling means a change of more than 10% in discharge (or 0.2 ft of gauge height) over 24 hours; our rule of thumb, not a USGS class.

Water temperature

Water temperature · last 7 days

Water temperature, about hourly
66°F: Montana FWP restriction trigger in cutthroat trout waters (3 days): above the range shown
68°F: Montana FWP, released trout far more likely to perish above it: above the range shown
73°F: Montana FWP hoot-owl trigger (3 days): above the range shown
Latest: 39.9 °F at Nov 5, 6:30 PM MST

USGS provisional data may be revised. Source: USGS instantaneous values.

View data as a table

Water temperature, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised. Missing hours or days are not filled in.
Time	Water temperature (°F)
Nov 5, 6:30 PM MST	39.9
Nov 5, 5:30 PM MST	39.7
Nov 5, 4:30 PM MST	39.7
Nov 5, 3:30 PM MST	39.9
Nov 5, 2:30 PM MST	39.7
Nov 5, 1:30 PM MST	39.6
Nov 5, 12:30 PM MST	39.4
Nov 5, 11:30 AM MST	39.2
Nov 5, 10:30 AM MST	39
Nov 5, 9:30 AM MST	39
Nov 5, 8:30 AM MST	39
Nov 5, 7:30 AM MST	39
Nov 5, 6:30 AM MST	39
Nov 5, 5:30 AM MST	39
Nov 5, 4:30 AM MST	39.2
Nov 5, 3:30 AM MST	39.2
Nov 5, 2:30 AM MST	39.2
Nov 5, 1:30 AM MST	39.2
Nov 5, 12:30 AM MST	39.2
Nov 4, 11:30 PM MST	39.2
Nov 4, 10:30 PM MST	39.4
Nov 4, 9:30 PM MST	39.4
Nov 4, 8:30 PM MST	39.4
Nov 4, 7:30 PM MST	39.6
Nov 4, 6:30 PM MST	39.6
Nov 4, 5:30 PM MST	39.6
Nov 4, 4:30 PM MST	39.6
Nov 4, 3:30 PM MST	39.6
Nov 4, 2:30 PM MST	39.6
Nov 4, 1:30 PM MST	39.4
Nov 4, 12:30 PM MST	39.4
Nov 4, 11:30 AM MST	39.2
Nov 4, 10:30 AM MST	39
Nov 4, 9:30 AM MST	39
Nov 4, 8:30 AM MST	39
Nov 4, 7:30 AM MST	39
Nov 4, 6:30 AM MST	39
Nov 4, 5:30 AM MST	39.2
Nov 4, 4:30 AM MST	39.4
Nov 4, 3:30 AM MST	39.6
Nov 4, 2:30 AM MST	39.7
Nov 4, 1:30 AM MST	39.9
Nov 4, 12:30 AM MST	39.9
Nov 3, 11:30 PM MST	40.1
Nov 3, 10:30 PM MST	40.3
Nov 3, 9:30 PM MST	40.3
Nov 3, 8:30 PM MST	40.5
Nov 3, 7:30 PM MST	40.6
Nov 3, 6:30 PM MST	40.8
Nov 3, 5:30 PM MST	41.2
Nov 3, 4:30 PM MST	41.4
Nov 3, 3:30 PM MST	41.4
Nov 3, 2:30 PM MST	41.5
Nov 3, 1:30 PM MST	41.4
Nov 3, 12:30 PM MST	41
Nov 3, 11:30 AM MST	40.8
Nov 3, 10:30 AM MST	40.6
Nov 3, 9:30 AM MST	40.5
Nov 3, 8:30 AM MST	40.5
Nov 3, 7:30 AM MST	40.5
Nov 3, 6:30 AM MST	40.6
Nov 3, 5:30 AM MST	40.6
Nov 3, 4:30 AM MST	40.8
Nov 3, 3:30 AM MST	41
Nov 3, 2:30 AM MST	41.4
Nov 3, 1:30 AM MST	41.7
Nov 3, 12:30 AM MST	41.9
Nov 2, 11:30 PM MST	42.1
Nov 2, 10:30 PM MST	42.3
Nov 2, 9:30 PM MST	42.3
Nov 2, 8:30 PM MST	42.4
Nov 2, 7:30 PM MST	42.8
Nov 2, 6:30 PM MST	43
Nov 2, 5:30 PM MST	43.3
Nov 2, 4:30 PM MST	43.3
Nov 2, 3:30 PM MST	43.5
Nov 2, 2:30 PM MST	43.5
Nov 2, 1:30 PM MST	43
Nov 2, 12:30 PM MST	42.4
Nov 2, 11:30 AM MST	42.1
Nov 2, 10:30 AM MST	41.9
Nov 2, 9:30 AM MST	41.7
Nov 2, 8:30 AM MST	41.7
Nov 2, 7:30 AM MST	41.7
Nov 2, 6:30 AM MST	41.9
Nov 2, 5:30 AM MST	41.9
Nov 2, 4:30 AM MST	42.1
Nov 2, 3:30 AM MST	42.1
Nov 2, 2:30 AM MST	42.1
Nov 2, 1:30 AM MST	42.1
Nov 2, 12:30 AM MST	42.1
Nov 1, 11:30 PM MST	42.3
Nov 1, 10:30 PM MST	42.3
Nov 1, 9:30 PM MST	42.4
Nov 1, 8:30 PM MST	42.4
Nov 1, 7:30 PM MST	42.4
Nov 1, 6:30 PM MST	42.6
Nov 1, 5:30 PM MST	42.6
Nov 1, 4:30 PM MST	42.6
Nov 1, 3:30 PM MST	42.4
Nov 1, 2:30 PM MST	42.4
Nov 1, 1:30 PM MST	42.4
Nov 1, 12:30 PM MST	42.1
Nov 1, 11:30 AM MST	41.9
Nov 1, 10:30 AM MST	41.7
Nov 1, 9:30 AM MST	41.7
Nov 1, 8:30 AM MST	41.5
Nov 1, 7:30 AM MST	41.7
Nov 1, 6:30 AM MST	41.7
Nov 1, 5:30 AM MST	41.7
Nov 1, 4:30 AM MST	41.9
Nov 1, 3:30 AM MST	41.9
Nov 1, 2:30 AM MST	42.1
Nov 1, 1:30 AM MST	42.1
Nov 1, 1:30 AM MDT	42.1
Nov 1, 12:30 AM MDT	42.1
Oct 31, 11:30 PM MDT	42.1
Oct 31, 10:30 PM MDT	42.3
Oct 31, 9:30 PM MDT	42.4
Oct 31, 8:30 PM MDT	42.6
Oct 31, 7:30 PM MDT	42.6
Oct 31, 6:30 PM MDT	42.8
Oct 31, 5:30 PM MDT	43
Oct 31, 4:30 PM MDT	42.8
Oct 31, 3:30 PM MDT	42.8
Oct 31, 2:30 PM MDT	42.3
Oct 31, 1:30 PM MDT	41.9
Oct 31, 12:30 PM MDT	41.7
Oct 31, 11:30 AM MDT	41.5
Oct 31, 10:30 AM MDT	41.5
Oct 31, 9:30 AM MDT	41.5
Oct 31, 8:30 AM MDT	41.5
Oct 31, 7:30 AM MDT	41.7
Oct 31, 6:30 AM MDT	41.7
Oct 31, 5:30 AM MDT	41.9
Oct 31, 4:30 AM MDT	41.9
Oct 31, 3:30 AM MDT	42.1
Oct 31, 2:30 AM MDT	42.1
Oct 31, 1:30 AM MDT	42.3
Oct 31, 12:30 AM MDT	42.3
Oct 30, 11:30 PM MDT	42.3
Oct 30, 10:30 PM MDT	42.3
Oct 30, 9:30 PM MDT	42.3
Oct 30, 8:30 PM MDT	42.3
Oct 30, 7:30 PM MDT	42.1
Oct 30, 6:30 PM MDT	42.1
Oct 30, 5:30 PM MDT	42.1
Oct 30, 4:30 PM MDT	41.9
Oct 30, 3:30 PM MDT	41.7
Oct 30, 2:30 PM MDT	41.5
Oct 30, 1:30 PM MDT	41
Oct 30, 12:30 PM MDT	40.6
Oct 30, 11:30 AM MDT	40.3
Oct 30, 10:30 AM MDT	40.1
Oct 30, 9:30 AM MDT	40.3
Oct 30, 8:30 AM MDT	40.3
Oct 30, 7:30 AM MDT	40.3
Oct 30, 6:30 AM MDT	40.5
Oct 30, 5:30 AM MDT	40.6
Oct 30, 4:30 AM MDT	41
Oct 30, 3:30 AM MDT	41.2
Oct 30, 2:30 AM MDT	41.4
Oct 30, 1:30 AM MDT	41.5
Oct 30, 12:30 AM MDT	41.9
Oct 29, 11:30 PM MDT	42.1
Oct 29, 10:30 PM MDT	42.3
Oct 29, 9:30 PM MDT	42.4
Oct 29, 8:30 PM MDT	42.4
Oct 29, 7:30 PM MDT	42.6

Where this gauge is

Where Blackfoot River near Bonner MT sits and our water's map point.

Map: © OpenStreetMap contributors · OpenFreeMap · © OpenMapTiles

Conditions for fishing general guidance

Water temperature for trout, salmon and steelhead

Under Montana FWP's 68°F line. Water 39.9°F now; the highest in the last 24 hours was 39.9°F. Montana FWP cites a study in which trout “caught and released from water with a temperature above 68 degrees F were far more likely to perish than those taken from cooler water.” Water warms through the day: “Fish in the cool morning hours.”
“Giving a hoot”, Montana Outdoors (July–August 2024) (Montana Fish, Wildlife & Parks) Drought and fishing (Montana Fish, Wildlife & Parks)

Species

Species the agency lists for Blackfoot River: Brook Trout, Brown Trout, Bull Trout, Largescale Sucker, Longnose Dace, Longnose Sucker, Mottled Sculpin, Mountain Whitefish, Northern Pike, Northern Pike Minnow, Peamouth, Rainbow Trout, Redside Shiner, Rocky Mountain Sculpin, Slimy Sculpin, Westslope Cutthroat Trout, Yellow Perch.

Source: FISHMT :: Waterbody Details (Montana Fish, Wildlife & Parks).

Safety

Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.
Flood categories: action stage, minor, moderate and major flooding (National Weather Service)
Cold water. Water 39.9°F. NWS: “Cold shock can be just as severe and dangerous from water temperatures of 50-60°F (10-15°C) as it is from water at 35°F (2°C).” “Always wear a life jacket in and around the water.”
Cold Water Hazards and Safety (National Weather Service)
Turn Around Don't Drown. “A mere 6 inches of fast-moving flood water can knock over an adult.” No flow number makes a crossing safe; if in doubt, stay out.
Turn Around Don't Drown (National Weather Service)

Guidance from the readings above and the published thresholds named with each line; not a fishing forecast, a safety guarantee or a statement about access. Local rules and closures come first.

Official flood stage · National Weather Service

Below NWS action stage. The National Weather Service reports this gauge below its action stage. That is not a statement that wading is safe.

NWS observed 2.15 ft stage, 648 ft³/s at Nov 5, 5:30 PM MST (NWS gauge BONM8; its stage datum can differ from the USGS gauge height).

Action stage: 9.5 ft
Minor flood: 10 ft
Moderate flood: 16 ft
Major flood: 17 ft

NWS river forecast forecast issued Nov 5, 7:53 AM MST. Highest point: 2.15 ft, 648 ft³/s on Nov 5, 11:00 AM MST (Below NWS action stage).

NWS forecast, highest value each day
Day	Stage	Flow
Thu, Nov 5	2.15 ft	648 ft³/s
Fri, Nov 6	2.15 ft	648 ft³/s
Sat, Nov 7	2.14 ft	641 ft³/s
Sun, Nov 8	2.14 ft	641 ft³/s
Mon, Nov 9	2.13 ft	634 ft³/s
Tue, Nov 10	2.13 ft	634 ft³/s
Wed, Nov 11	2.13 ft	634 ft³/s
Thu, Nov 12	2.13 ft	634 ft³/s
Fri, Nov 13	2.14 ft	641 ft³/s
Sat, Nov 14	2.15 ft	648 ft³/s

Open the NWS gauge page · What the categories mean (National Weather Service)

This gauge is on Blackfoot River: regulations, guides and shops

USGS gauge page USGS statistics NWS gauge BONM8

Checked Nov 5, 7:07 PM MST; readings refresh at most every 15 minutes and statistics daily. Provisional USGS data can be revised. Conditions change: re-check before you go. This is general guidance, not a fishing forecast, a safety guarantee or a statement about access.

Reading Blackfoot River near Bonner MT…

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised. Missing hours or days are not filled in.

Time

Discharge (ft³/s)

Gauge height (ft)

Water temp (°F)

Normal, 25th–75th (ft³/s)

Nov 5, 6:30 PM MST

648

2.15

39.9

540–724

Nov 5, 5:30 PM MST

648

2.15

39.7

540–724

Nov 5, 4:30 PM MST

648

2.15

39.7

540–724

Nov 5, 3:30 PM MST

648

2.15

39.9

540–724

Nov 5, 2:30 PM MST

641

2.14

39.7

540–724

Nov 5, 1:30 PM MST

648

2.15

39.6

540–724

Nov 5, 12:30 PM MST

641

2.14

39.4

540–724

Nov 5, 11:30 AM MST

648

2.15

39.2

540–724

Nov 5, 10:30 AM MST

648

2.15

540–724

Nov 5, 9:30 AM MST

648

2.15

540–724

Nov 5, 8:30 AM MST

648

2.15

540–724

Nov 5, 7:30 AM MST

648

2.15

540–724

Nov 5, 6:30 AM MST

648

2.15

540–724

Nov 5, 5:30 AM MST

648

2.15

540–724

Nov 5, 4:30 AM MST

648

2.15

39.2

540–724

Nov 5, 3:30 AM MST

648

2.15

39.2

540–724

Nov 5, 2:30 AM MST

648

2.15

39.2

540–724

Nov 5, 1:30 AM MST

648

2.15

39.2

540–724

Nov 5, 12:30 AM MST

655

2.16

39.2

540–724

Nov 4, 11:30 PM MST

648

2.15

39.2

540–727

Nov 4, 10:30 PM MST

648

2.15

39.4

540–727

Nov 4, 9:30 PM MST

648

2.15

39.4

540–727

Nov 4, 8:30 PM MST

648

2.15

39.4

540–727

Nov 4, 7:30 PM MST

648

2.15

39.6

540–727

Nov 4, 6:30 PM MST

655

2.16

39.6

540–727

Nov 4, 5:30 PM MST

655

2.16

39.6

540–727

Nov 4, 4:30 PM MST

655

2.16

39.6

540–727

Nov 4, 3:30 PM MST

655

2.16

39.6

540–727

Nov 4, 2:30 PM MST

655

2.16

39.6

540–727

Nov 4, 1:30 PM MST

655

2.16

39.4

540–727

Nov 4, 12:30 PM MST

655

2.16

39.4

540–727

Nov 4, 11:30 AM MST

655

2.16

39.2

540–727

Nov 4, 10:30 AM MST

655

2.16

540–727

Nov 4, 9:30 AM MST

662

2.17

540–727

Nov 4, 8:30 AM MST

662

2.17

540–727

Nov 4, 7:30 AM MST

662

2.17

540–727

Nov 4, 6:30 AM MST

662

2.17

540–727

Nov 4, 5:30 AM MST

662

2.17

39.2

540–727

Nov 4, 4:30 AM MST

662

2.17

39.4

540–727

Nov 4, 3:30 AM MST

662

2.17

39.6

540–727

Nov 4, 2:30 AM MST

662

2.17

39.7

540–727

Nov 4, 1:30 AM MST

662

2.17

39.9

540–727

Nov 4, 12:30 AM MST

662

2.17

39.9

540–727

Nov 3, 11:30 PM MST

662

2.17

40.1

539–711

Nov 3, 10:30 PM MST

662

2.17

40.3

539–711

Nov 3, 9:30 PM MST

662

2.17

40.3

539–711

Nov 3, 8:30 PM MST

669

2.18

40.5

539–711

Nov 3, 7:30 PM MST

662

2.17

40.6

539–711

Nov 3, 6:30 PM MST

669

2.18

40.8

539–711

Nov 3, 5:30 PM MST

669

2.18

41.2

539–711

Nov 3, 4:30 PM MST

669

2.18

41.4

539–711

Nov 3, 3:30 PM MST

669

2.18

41.4

539–711

Nov 3, 2:30 PM MST

662

2.17

41.5

539–711

Nov 3, 1:30 PM MST

669

2.18

41.4

539–711

Nov 3, 12:30 PM MST

669

2.18

539–711

Nov 3, 11:30 AM MST

669

2.18

40.8

539–711

Nov 3, 10:30 AM MST

669

2.18

40.6

539–711

Nov 3, 9:30 AM MST

669

2.18

40.5

539–711

Nov 3, 8:30 AM MST

669

2.18

40.5

539–711

Nov 3, 7:30 AM MST

669

2.18

40.5

539–711

Nov 3, 6:30 AM MST

669

2.18

40.6

539–711

Nov 3, 5:30 AM MST

676

2.19

40.6

539–711

Nov 3, 4:30 AM MST

669

2.18

40.8

539–711

Nov 3, 3:30 AM MST

676

2.19

539–711

Nov 3, 2:30 AM MST

669

2.18

41.4

539–711

Nov 3, 1:30 AM MST

669

2.18

41.7

539–711

Nov 3, 12:30 AM MST

669

2.18

41.9

539–711

Nov 2, 11:30 PM MST

669

2.18

42.1

540–716

Nov 2, 10:30 PM MST

676

2.19

42.3

540–716

Nov 2, 9:30 PM MST

669

2.18

42.3

540–716

Nov 2, 8:30 PM MST

669

2.18

42.4

540–716

Nov 2, 7:30 PM MST

676

2.19

42.8

540–716

Nov 2, 6:30 PM MST

669

2.18

540–716

Nov 2, 5:30 PM MST

676

2.19

43.3

540–716

Nov 2, 4:30 PM MST

676

2.19

43.3

540–716

Nov 2, 3:30 PM MST

683

2.2

43.5

540–716

Nov 2, 2:30 PM MST

676

2.19

43.5

540–716

Nov 2, 1:30 PM MST

669

2.18

540–716

Nov 2, 12:30 PM MST

676

2.19

42.4

540–716

Nov 2, 11:30 AM MST

669

2.18

42.1

540–716

Nov 2, 10:30 AM MST

669

2.18

41.9

540–716

Nov 2, 9:30 AM MST

676

2.19

41.7

540–716

Nov 2, 8:30 AM MST

669

2.18

41.7

540–716

Nov 2, 7:30 AM MST

676

2.19

41.7

540–716

Nov 2, 6:30 AM MST

676

2.19

41.9

540–716

Nov 2, 5:30 AM MST

676

2.19

41.9

540–716

Nov 2, 4:30 AM MST

676

2.19

42.1

540–716

Nov 2, 3:30 AM MST

676

2.19

42.1

540–716

Nov 2, 2:30 AM MST

669

2.18

42.1

540–716

Nov 2, 1:30 AM MST

669

2.18

42.1

540–716

Nov 2, 12:30 AM MST

669

2.18

42.1

540–716

Nov 1, 11:30 PM MST

669

2.18

42.3

539–711

Nov 1, 10:30 PM MST

669

2.18

42.3

539–711

Nov 1, 9:30 PM MST

662

2.17

42.4

539–711

Nov 1, 8:30 PM MST

662

2.17

42.4

539–711

Nov 1, 7:30 PM MST

662

2.17

42.4

539–711

Nov 1, 6:30 PM MST

662

2.17

42.6

539–711

Nov 1, 5:30 PM MST

662

2.17

42.6

539–711

Nov 1, 4:30 PM MST

662

2.17

42.6

539–711

Nov 1, 3:30 PM MST

662

2.17

42.4

539–711

Nov 1, 2:30 PM MST

655

2.16

42.4

539–711

Nov 1, 1:30 PM MST

662

2.17

42.4

539–711

Nov 1, 12:30 PM MST

662

2.17

42.1

539–711

Nov 1, 11:30 AM MST

655

2.16

41.9

539–711

Nov 1, 10:30 AM MST

655

2.16

41.7

539–711

Nov 1, 9:30 AM MST

655

2.16

41.7

539–711

Nov 1, 8:30 AM MST

655

2.16

41.5

539–711

Nov 1, 7:30 AM MST

648

2.15

41.7

539–711

Nov 1, 6:30 AM MST

655

2.16

41.7

539–711

Nov 1, 5:30 AM MST

655

2.16

41.7

539–711

Nov 1, 4:30 AM MST

648

2.15

41.9

539–711

Nov 1, 3:30 AM MST

655

2.16

41.9

539–711

Nov 1, 2:30 AM MST

655

2.16

42.1

539–711

Nov 1, 1:30 AM MST

655

2.16

42.1

539–711

Nov 1, 1:30 AM MDT

655

2.16

42.1

539–711

Nov 1, 12:30 AM MDT

655

2.16

42.1

539–711

Oct 31, 11:30 PM MDT

655

2.16

42.1

537–702

Oct 31, 10:30 PM MDT

655

2.16

42.3

537–702

Oct 31, 9:30 PM MDT

655

2.16

42.4

537–702

Oct 31, 8:30 PM MDT

655

2.16

42.6

537–702

Oct 31, 7:30 PM MDT

655

2.16

42.6

537–702

Oct 31, 6:30 PM MDT

655

2.16

42.8

537–702

Oct 31, 5:30 PM MDT

655

2.16

537–702

Oct 31, 4:30 PM MDT

655

2.16

42.8

537–702

Oct 31, 3:30 PM MDT

655

2.16

42.8

537–702

Oct 31, 2:30 PM MDT

662

2.17

42.3

537–702

Oct 31, 1:30 PM MDT

662

2.17

41.9

537–702

Oct 31, 12:30 PM MDT

662

2.17

41.7

537–702

Oct 31, 11:30 AM MDT

662

2.17

41.5

537–702

Oct 31, 10:30 AM MDT

662

2.17

41.5

537–702

Oct 31, 9:30 AM MDT

662

2.17

41.5

537–702

Oct 31, 8:30 AM MDT

662

2.17

41.5

537–702

Oct 31, 7:30 AM MDT

662

2.17

41.7

537–702

Oct 31, 6:30 AM MDT

662

2.17

41.7

537–702

Oct 31, 5:30 AM MDT

662

2.17

41.9

537–702

Oct 31, 4:30 AM MDT

662

2.17

41.9

537–702

Oct 31, 3:30 AM MDT

662

2.17

42.1

537–702

Oct 31, 2:30 AM MDT

669

2.18

42.1

537–702

Oct 31, 1:30 AM MDT

669

2.18

42.3

537–702

Oct 31, 12:30 AM MDT

669

2.18

42.3

537–702

Oct 30, 11:30 PM MDT

669

2.18

42.3

527–707

Oct 30, 10:30 PM MDT

669

2.18

42.3

527–707

Oct 30, 9:30 PM MDT

669

2.18

42.3

527–707

Oct 30, 8:30 PM MDT

669

2.18

42.3

527–707

Oct 30, 7:30 PM MDT

669

2.18

42.1

527–707

Oct 30, 6:30 PM MDT

676

2.19

42.1

527–707

Oct 30, 5:30 PM MDT

676

2.19

42.1

527–707

Oct 30, 4:30 PM MDT

676

2.19

41.9

527–707

Oct 30, 3:30 PM MDT

676

2.19

41.7

527–707

Oct 30, 2:30 PM MDT

676

2.19

41.5

527–707

Oct 30, 1:30 PM MDT

676

2.19

527–707

Oct 30, 12:30 PM MDT

676

2.19

40.6

527–707

Oct 30, 11:30 AM MDT

683

2.2

40.3

527–707

Oct 30, 10:30 AM MDT

676

2.19

40.1

527–707

Oct 30, 9:30 AM MDT

683

2.2

40.3

527–707

Oct 30, 8:30 AM MDT

683

2.2

40.3

527–707

Oct 30, 7:30 AM MDT

683

2.2

40.3

527–707

Oct 30, 6:30 AM MDT

683

2.2

40.5

527–707

Oct 30, 5:30 AM MDT

683

2.2

40.6

527–707

Oct 30, 4:30 AM MDT

683

2.2

527–707

Oct 30, 3:30 AM MDT

683

2.2

41.2

527–707

Oct 30, 2:30 AM MDT

683

2.2

41.4

527–707

Oct 30, 1:30 AM MDT

683

2.2

41.5

527–707

Oct 30, 12:30 AM MDT

690

2.21

41.9

527–707

Oct 29, 11:30 PM MDT

683

2.2

42.1

525–686

Oct 29, 10:30 PM MDT

690

2.21

42.3

525–686

Oct 29, 9:30 PM MDT

690

2.21

42.4

525–686

Oct 29, 8:30 PM MDT

690

2.21

42.4

525–686

Oct 29, 7:30 PM MDT

690

2.21

42.6

525–686

Water temperature, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised. Missing hours or days are not filled in.

Time

Water temperature (°F)

Nov 5, 6:30 PM MST

39.9

Nov 5, 5:30 PM MST

39.7

Nov 5, 4:30 PM MST

39.7

Nov 5, 3:30 PM MST

39.9

Nov 5, 2:30 PM MST

39.7

Nov 5, 1:30 PM MST

39.6

Nov 5, 12:30 PM MST

39.4

Nov 5, 11:30 AM MST

39.2

Nov 5, 10:30 AM MST

Nov 5, 9:30 AM MST

Nov 5, 8:30 AM MST

Nov 5, 7:30 AM MST

Nov 5, 6:30 AM MST

Nov 5, 5:30 AM MST

Nov 5, 4:30 AM MST

39.2

Nov 5, 3:30 AM MST

39.2

Nov 5, 2:30 AM MST

39.2

Nov 5, 1:30 AM MST

39.2

Nov 5, 12:30 AM MST

39.2

Nov 4, 11:30 PM MST

39.2

Nov 4, 10:30 PM MST

39.4

Nov 4, 9:30 PM MST

39.4

Nov 4, 8:30 PM MST

39.4

Nov 4, 7:30 PM MST

39.6

Nov 4, 6:30 PM MST

39.6

Nov 4, 5:30 PM MST

39.6

Nov 4, 4:30 PM MST

39.6

Nov 4, 3:30 PM MST

39.6

Nov 4, 2:30 PM MST

39.6

Nov 4, 1:30 PM MST

39.4

Nov 4, 12:30 PM MST

39.4

Nov 4, 11:30 AM MST

39.2

Nov 4, 10:30 AM MST

Nov 4, 9:30 AM MST

Nov 4, 8:30 AM MST

Nov 4, 7:30 AM MST

Nov 4, 6:30 AM MST

Nov 4, 5:30 AM MST

39.2

Nov 4, 4:30 AM MST

39.4

Nov 4, 3:30 AM MST

39.6

Nov 4, 2:30 AM MST

39.7

Nov 4, 1:30 AM MST

39.9

Nov 4, 12:30 AM MST

39.9

Nov 3, 11:30 PM MST

40.1

Nov 3, 10:30 PM MST

40.3

Nov 3, 9:30 PM MST

40.3

Nov 3, 8:30 PM MST

40.5

Nov 3, 7:30 PM MST

40.6

Nov 3, 6:30 PM MST

40.8

Nov 3, 5:30 PM MST

41.2

Nov 3, 4:30 PM MST

41.4

Nov 3, 3:30 PM MST

41.4

Nov 3, 2:30 PM MST

41.5

Nov 3, 1:30 PM MST

41.4

Nov 3, 12:30 PM MST

Nov 3, 11:30 AM MST

40.8

Nov 3, 10:30 AM MST

40.6

Nov 3, 9:30 AM MST

40.5

Nov 3, 8:30 AM MST

40.5

Nov 3, 7:30 AM MST

40.5

Nov 3, 6:30 AM MST

40.6

Nov 3, 5:30 AM MST

40.6

Nov 3, 4:30 AM MST

40.8

Nov 3, 3:30 AM MST

Nov 3, 2:30 AM MST

41.4

Nov 3, 1:30 AM MST

41.7

Nov 3, 12:30 AM MST

41.9

Nov 2, 11:30 PM MST

42.1

Nov 2, 10:30 PM MST

42.3

Nov 2, 9:30 PM MST

42.3

Nov 2, 8:30 PM MST

42.4

Nov 2, 7:30 PM MST

42.8

Nov 2, 6:30 PM MST

Nov 2, 5:30 PM MST

43.3

Nov 2, 4:30 PM MST

43.3

Nov 2, 3:30 PM MST

43.5

Nov 2, 2:30 PM MST

43.5

Nov 2, 1:30 PM MST

Nov 2, 12:30 PM MST

42.4

Nov 2, 11:30 AM MST

42.1

Nov 2, 10:30 AM MST

41.9

Nov 2, 9:30 AM MST

41.7

Nov 2, 8:30 AM MST

41.7

Nov 2, 7:30 AM MST

41.7

Nov 2, 6:30 AM MST

41.9

Nov 2, 5:30 AM MST

41.9

Nov 2, 4:30 AM MST

42.1

Nov 2, 3:30 AM MST

42.1

Nov 2, 2:30 AM MST

42.1

Nov 2, 1:30 AM MST

42.1

Nov 2, 12:30 AM MST

42.1

Nov 1, 11:30 PM MST

42.3

Nov 1, 10:30 PM MST

42.3

Nov 1, 9:30 PM MST

42.4

Nov 1, 8:30 PM MST

42.4

Nov 1, 7:30 PM MST

42.4

Nov 1, 6:30 PM MST

42.6

Nov 1, 5:30 PM MST

42.6

Nov 1, 4:30 PM MST

42.6

Nov 1, 3:30 PM MST

42.4

Nov 1, 2:30 PM MST

42.4

Nov 1, 1:30 PM MST

42.4

Nov 1, 12:30 PM MST

42.1

Nov 1, 11:30 AM MST

41.9

Nov 1, 10:30 AM MST

41.7

Nov 1, 9:30 AM MST

41.7

Nov 1, 8:30 AM MST

41.5

Nov 1, 7:30 AM MST

41.7

Nov 1, 6:30 AM MST

41.7

Nov 1, 5:30 AM MST

41.7

Nov 1, 4:30 AM MST

41.9

Nov 1, 3:30 AM MST

41.9

Nov 1, 2:30 AM MST

42.1

Nov 1, 1:30 AM MST

42.1

Nov 1, 1:30 AM MDT

42.1

Nov 1, 12:30 AM MDT

42.1

Oct 31, 11:30 PM MDT

42.1

Oct 31, 10:30 PM MDT

42.3

Oct 31, 9:30 PM MDT

42.4

Oct 31, 8:30 PM MDT

42.6

Oct 31, 7:30 PM MDT

42.6

Oct 31, 6:30 PM MDT

42.8

Oct 31, 5:30 PM MDT

Oct 31, 4:30 PM MDT

42.8

Oct 31, 3:30 PM MDT

42.8

Oct 31, 2:30 PM MDT

42.3

Oct 31, 1:30 PM MDT

41.9

Oct 31, 12:30 PM MDT

41.7

Oct 31, 11:30 AM MDT

41.5

Oct 31, 10:30 AM MDT

41.5

Oct 31, 9:30 AM MDT

41.5

Oct 31, 8:30 AM MDT

41.5

Oct 31, 7:30 AM MDT

41.7

Oct 31, 6:30 AM MDT

41.7

Oct 31, 5:30 AM MDT

41.9

Oct 31, 4:30 AM MDT

41.9

Oct 31, 3:30 AM MDT

42.1

Oct 31, 2:30 AM MDT

42.1

Oct 31, 1:30 AM MDT

42.3

Oct 31, 12:30 AM MDT

42.3

Oct 30, 11:30 PM MDT

42.3

Oct 30, 10:30 PM MDT

42.3

Oct 30, 9:30 PM MDT

42.3

Oct 30, 8:30 PM MDT

42.3

Oct 30, 7:30 PM MDT

42.1

Oct 30, 6:30 PM MDT

42.1

Oct 30, 5:30 PM MDT

42.1

Oct 30, 4:30 PM MDT

41.9

Oct 30, 3:30 PM MDT

41.7

Oct 30, 2:30 PM MDT

41.5

Oct 30, 1:30 PM MDT

Oct 30, 12:30 PM MDT

40.6

Oct 30, 11:30 AM MDT

40.3

Oct 30, 10:30 AM MDT

40.1

Oct 30, 9:30 AM MDT

40.3

Oct 30, 8:30 AM MDT

40.3

Oct 30, 7:30 AM MDT

40.3

Oct 30, 6:30 AM MDT

40.5

Oct 30, 5:30 AM MDT

40.6

Oct 30, 4:30 AM MDT

Oct 30, 3:30 AM MDT

41.2

Oct 30, 2:30 AM MDT

41.4

Oct 30, 1:30 AM MDT

41.5

Oct 30, 12:30 AM MDT

41.9

Oct 29, 11:30 PM MDT

42.1

Oct 29, 10:30 PM MDT

42.3

Oct 29, 9:30 PM MDT

42.4

Oct 29, 8:30 PM MDT

42.4

Oct 29, 7:30 PM MDT

42.6

Day

Stage

Flow

Thu, Nov 5

2.15 ft

648 ft³/s

Fri, Nov 6

2.15 ft

648 ft³/s

Sat, Nov 7

2.14 ft

641 ft³/s

Sun, Nov 8

2.14 ft

641 ft³/s

Mon, Nov 9

2.13 ft

634 ft³/s

Tue, Nov 10

2.13 ft

634 ft³/s

Wed, Nov 11

2.13 ft

634 ft³/s

Thu, Nov 12

2.13 ft

634 ft³/s

Fri, Nov 13

2.14 ft

641 ft³/s

Sat, Nov 14

2.15 ft

648 ft³/s