Sun River at Simms MT

USGS 06085800 · Montana · reports discharge (live), gauge height, water temperature

Good: Good conditions: fish normally

If you're fishing for trout here: 41°F now, 42.1°F at most in 24 hours: under Montana FWP's 68°F line. Montana Fish, Wildlife & Parks
Flow 270 ft³/s: above normal for Nov 5, over 39 years of USGS record. U.S. Geological Survey
Cold water, 41°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: 270 ft³/s
Gauge height: 2.8 ft
Water temp: 41°F (5°C)

Reading Nov 5, 7:30 PM MST · provisional USGS data

Above 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, 39+ years of record
NWS action stage (4,213 ft³/s): above the range shown
NWS minor flood stage (6,724 ft³/s): above the range shown
NWS moderate flood stage (14,125 ft³/s): above the range shown
NWS major flood stage (50,029 ft³/s): above the range shown
Latest: 270 ft³/s at Nov 5, 7:30 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, 7:30 PM MST	270	2.8	41	167–240
Nov 5, 6:30 PM MST	270	2.8	41.5	167–240
Nov 5, 5:30 PM MST	276	2.81	41.9	167–240
Nov 5, 4:30 PM MST	270	2.8	42.1	167–240
Nov 5, 3:30 PM MST	270	2.8	41.9	167–240
Nov 5, 2:30 PM MST	270	2.8	41.5	167–240
Nov 5, 1:30 PM MST	270	2.8	41.2	167–240
Nov 5, 12:30 PM MST	270	2.8	40.5	167–240
Nov 5, 11:30 AM MST	270	2.8	40.1	167–240
Nov 5, 10:30 AM MST	276	2.81	39.2	167–240
Nov 5, 9:30 AM MST	276	2.81	39	167–240
Nov 5, 8:30 AM MST	276	2.81	38.7	167–240
Nov 5, 7:30 AM MST	270	2.8	38.8	167–240
Nov 5, 6:30 AM MST	276	2.81	39.2	167–240
Nov 5, 5:30 AM MST	276	2.81	39.4	167–240
Nov 5, 4:30 AM MST	276	2.81	39.6	167–240
Nov 5, 3:30 AM MST	276	2.81	39.9	167–240
Nov 5, 2:30 AM MST	276	2.81	40.1	167–240
Nov 5, 1:30 AM MST	276	2.81	40.3	167–240
Nov 5, 12:30 AM MST	276	2.81	40.3	167–240
Nov 4, 11:30 PM MST	276	2.81	40.6	166–246
Nov 4, 10:30 PM MST	276	2.81	41	166–246
Nov 4, 9:30 PM MST	282	2.82	41.4	166–246
Nov 4, 8:30 PM MST	276	2.81	41.7	166–246
Nov 4, 7:30 PM MST	282	2.82	42.1	166–246
Nov 4, 6:30 PM MST	282	2.82	42.4	166–246
Nov 4, 5:30 PM MST	282	2.82	42.8	166–246
Nov 4, 4:30 PM MST	276	2.81	43.2	166–246
Nov 4, 3:30 PM MST	270	2.8	43.2	166–246
Nov 4, 2:30 PM MST	270	2.8	42.6	166–246
Nov 4, 1:30 PM MST	270	2.8	41.9	166–246
Nov 4, 12:30 PM MST	276	2.81	41	166–246
Nov 4, 11:30 AM MST	276	2.81	40.1	166–246
Nov 4, 10:30 AM MST	276	2.81	39.2	166–246
Nov 4, 9:30 AM MST	276	2.81	38.8	166–246
Nov 4, 8:30 AM MST	276	2.81	38.7	166–246
Nov 4, 7:30 AM MST	270	2.8	38.8	166–246
Nov 4, 6:30 AM MST	276	2.81	39.2	166–246
Nov 4, 5:30 AM MST	276	2.81	39.7	166–246
Nov 4, 4:30 AM MST	276	2.81	40.1	166–246
Nov 4, 3:30 AM MST	270	2.8	40.5	166–246
Nov 4, 2:30 AM MST	276	2.81	40.8	166–246
Nov 4, 1:30 AM MST	276	2.81	41.2	166–246
Nov 4, 12:30 AM MST	276	2.81	41.4	166–246
Nov 3, 11:30 PM MST	276	2.81	41.7	166–246
Nov 3, 10:30 PM MST	276	2.81	42.1	166–246
Nov 3, 9:30 PM MST	276	2.81	42.4	166–246
Nov 3, 8:30 PM MST	276	2.81	42.6	166–246
Nov 3, 7:30 PM MST	276	2.81	43	166–246
Nov 3, 6:30 PM MST	276	2.81	43.5	166–246
Nov 3, 5:30 PM MST	276	2.81	43.9	166–246
Nov 3, 4:30 PM MST	276	2.81	44.2	166–246
Nov 3, 3:30 PM MST	276	2.81	44.2	166–246
Nov 3, 2:30 PM MST	282	2.82	43.9	166–246
Nov 3, 1:30 PM MST	276	2.81	43.2	166–246
Nov 3, 12:30 PM MST	282	2.82	42.3	166–246
Nov 3, 11:30 AM MST	282	2.82	41.2	166–246
Nov 3, 10:30 AM MST	282	2.82	40.3	166–246
Nov 3, 9:30 AM MST	282	2.82	39.7	166–246
Nov 3, 8:30 AM MST	276	2.81	39.6	166–246
Nov 3, 7:30 AM MST	276	2.81	39.7	166–246
Nov 3, 6:30 AM MST	276	2.81	40.1	166–246
Nov 3, 5:30 AM MST	276	2.81	40.5	166–246
Nov 3, 4:30 AM MST	276	2.81	40.8	166–246
Nov 3, 3:30 AM MST	282	2.82	41.2	166–246
Nov 3, 2:30 AM MST	282	2.82	41.5	166–246
Nov 3, 1:30 AM MST	282	2.82	41.7	166–246
Nov 3, 12:30 AM MST	282	2.82	42.1	166–246
Nov 2, 11:30 PM MST	282	2.82	42.4	165–236
Nov 2, 10:30 PM MST	282	2.82	42.8	165–236
Nov 2, 9:30 PM MST	282	2.82	43.3	165–236
Nov 2, 8:30 PM MST	282	2.82	43.7	165–236
Nov 2, 7:30 PM MST	288	2.83	44.1	165–236
Nov 2, 6:30 PM MST	288	2.83	44.6	165–236
Nov 2, 5:30 PM MST	288	2.83	45	165–236
Nov 2, 4:30 PM MST	288	2.83	45.3	165–236
Nov 2, 3:30 PM MST	288	2.83	45.5	165–236
Nov 2, 2:30 PM MST	288	2.83	45.3	165–236
Nov 2, 1:30 PM MST	294	2.84	44.6	165–236
Nov 2, 12:30 PM MST	294	2.84	43.7	165–236
Nov 2, 11:30 AM MST	294	2.84	42.8	165–236
Nov 2, 10:30 AM MST	300	2.85	41.9	165–236
Nov 2, 9:30 AM MST	300	2.85	41.4	165–236
Nov 2, 8:30 AM MST	294	2.84	41.2	165–236
Nov 2, 7:30 AM MST	294	2.84	41.4	165–236
Nov 2, 6:30 AM MST	294	2.84	41.7	165–236
Nov 2, 5:30 AM MST	294	2.84	42.1	165–236
Nov 2, 4:30 AM MST	294	2.84	42.1	165–236
Nov 2, 3:30 AM MST	300	2.85	42.3	165–236
Nov 2, 2:30 AM MST	300	2.85	42.3	165–236
Nov 2, 1:30 AM MST	300	2.85	42.3	165–236
Nov 2, 12:30 AM MST	300	2.85	42.3	165–236
Nov 1, 11:30 PM MST	300	2.85	42.3	160–241
Nov 1, 10:30 PM MST	300	2.85	42.3	160–241
Nov 1, 9:30 PM MST	300	2.85	42.3	160–241
Nov 1, 8:30 PM MST	300	2.85	42.3	160–241
Nov 1, 7:30 PM MST	294	2.84	42.3	160–241
Nov 1, 6:30 PM MST	294	2.84	42.3	160–241
Nov 1, 5:30 PM MST	294	2.84	42.3	160–241
Nov 1, 4:30 PM MST	294	2.84	42.3	160–241
Nov 1, 3:30 PM MST	294	2.84	42.3	160–241
Nov 1, 2:30 PM MST	288	2.83	42.1	160–241
Nov 1, 1:30 PM MST	288	2.83	41.7	160–241
Nov 1, 12:30 PM MST	288	2.83	41.4	160–241
Nov 1, 11:30 AM MST	282	2.82	41.2	160–241
Nov 1, 10:30 AM MST	282	2.82	41	160–241
Nov 1, 9:30 AM MST	282	2.82	40.8	160–241
Nov 1, 8:30 AM MST	276	2.81	40.8	160–241
Nov 1, 7:30 AM MST	276	2.81	40.8	160–241
Nov 1, 6:30 AM MST	276	2.81	41	160–241
Nov 1, 5:30 AM MST	276	2.81	41	160–241
Nov 1, 4:30 AM MST	276	2.81	41.2	160–241
Nov 1, 3:30 AM MST	276	2.81	41.4	160–241
Nov 1, 2:30 AM MST	276	2.81	41.5	160–241
Nov 1, 1:30 AM MST	276	2.81	41.7	160–241
Nov 1, 1:30 AM MDT	276	2.81	42.1	160–241
Nov 1, 12:30 AM MDT	276	2.81	42.3	160–241
Oct 31, 11:30 PM MDT	276	2.81	42.6	159–232
Oct 31, 10:30 PM MDT	276	2.81	43	159–232
Oct 31, 9:30 PM MDT	276	2.81	43.2	159–232
Oct 31, 8:30 PM MDT	282	2.82	43.5	159–232
Oct 31, 7:30 PM MDT	276	2.81	43.7	159–232
Oct 31, 6:30 PM MDT	276	2.81	43.7	159–232
Oct 31, 5:30 PM MDT	282	2.82	43.9	159–232
Oct 31, 4:30 PM MDT	282	2.82	43.7	159–232
Oct 31, 3:30 PM MDT	282	2.82	43.7	159–232
Oct 31, 2:30 PM MDT	282	2.82	43.3	159–232
Oct 31, 1:30 PM MDT	282	2.82	42.8	159–232
Oct 31, 12:30 PM MDT	282	2.82	42.3	159–232
Oct 31, 11:30 AM MDT	282	2.82	41.7	159–232
Oct 31, 10:30 AM MDT	282	2.82	41.2	159–232
Oct 31, 9:30 AM MDT	282	2.82	41	159–232
Oct 31, 8:30 AM MDT	282	2.82	41	159–232
Oct 31, 7:30 AM MDT	282	2.82	41	159–232
Oct 31, 6:30 AM MDT	282	2.82	41	159–232
Oct 31, 5:30 AM MDT	282	2.82	41	159–232
Oct 31, 4:30 AM MDT	282	2.82	41	159–232
Oct 31, 3:30 AM MDT	282	2.82	41.2	159–232
Oct 31, 2:30 AM MDT	282	2.82	41.2	159–232
Oct 31, 1:30 AM MDT	282	2.82	41.2	159–232
Oct 31, 12:30 AM MDT	282	2.82	41.2	159–232
Oct 30, 11:30 PM MDT	282	2.82	41.2	159–234
Oct 30, 10:30 PM MDT	282	2.82	41.4	159–234
Oct 30, 9:30 PM MDT	282	2.82	41.4	159–234
Oct 30, 8:30 PM MDT	282	2.82	41.4	159–234
Oct 30, 7:30 PM MDT	282	2.82	41.5	159–234
Oct 30, 6:30 PM MDT	282	2.82	41.7	159–234
Oct 30, 5:30 PM MDT	282	2.82	41.7	159–234
Oct 30, 4:30 PM MDT	282	2.82	41.7	159–234
Oct 30, 3:30 PM MDT	282	2.82	41.5	159–234
Oct 30, 2:30 PM MDT	282	2.82	41.4	159–234
Oct 30, 1:30 PM MDT	282	2.82	41.2	159–234
Oct 30, 12:30 PM MDT	282	2.82	41	159–234
Oct 30, 11:30 AM MDT	282	2.82	40.8	159–234
Oct 30, 10:30 AM MDT	288	2.83	40.6	159–234
Oct 30, 9:30 AM MDT	282	2.82	40.6	159–234
Oct 30, 8:30 AM MDT	288	2.83	40.6	159–234
Oct 30, 7:30 AM MDT	288	2.83	40.6	159–234
Oct 30, 6:30 AM MDT	288	2.83	40.6	159–234
Oct 30, 5:30 AM MDT	282	2.82	40.8	159–234
Oct 30, 4:30 AM MDT	282	2.82	40.8	159–234
Oct 30, 3:30 AM MDT	282	2.82	40.8	159–234
Oct 30, 2:30 AM MDT	282	2.82	41	159–234
Oct 30, 1:30 AM MDT	282	2.82	41	159–234
Oct 30, 12:30 AM MDT	282	2.82	41	159–234
Oct 29, 11:30 PM MDT	282	2.82	41.2	162–237
Oct 29, 10:30 PM MDT	282	2.82	41.2	162–237
Oct 29, 9:30 PM MDT	282	2.82	41.4	162–237
Oct 29, 8:30 PM MDT	276	2.81	41.4	162–237

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: 41 °F at Nov 5, 7:30 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, 7:30 PM MST	41
Nov 5, 6:30 PM MST	41.5
Nov 5, 5:30 PM MST	41.9
Nov 5, 4:30 PM MST	42.1
Nov 5, 3:30 PM MST	41.9
Nov 5, 2:30 PM MST	41.5
Nov 5, 1:30 PM MST	41.2
Nov 5, 12:30 PM MST	40.5
Nov 5, 11:30 AM MST	40.1
Nov 5, 10:30 AM MST	39.2
Nov 5, 9:30 AM MST	39
Nov 5, 8:30 AM MST	38.7
Nov 5, 7:30 AM MST	38.8
Nov 5, 6:30 AM MST	39.2
Nov 5, 5:30 AM MST	39.4
Nov 5, 4:30 AM MST	39.6
Nov 5, 3:30 AM MST	39.9
Nov 5, 2:30 AM MST	40.1
Nov 5, 1:30 AM MST	40.3
Nov 5, 12:30 AM MST	40.3
Nov 4, 11:30 PM MST	40.6
Nov 4, 10:30 PM MST	41
Nov 4, 9:30 PM MST	41.4
Nov 4, 8:30 PM MST	41.7
Nov 4, 7:30 PM MST	42.1
Nov 4, 6:30 PM MST	42.4
Nov 4, 5:30 PM MST	42.8
Nov 4, 4:30 PM MST	43.2
Nov 4, 3:30 PM MST	43.2
Nov 4, 2:30 PM MST	42.6
Nov 4, 1:30 PM MST	41.9
Nov 4, 12:30 PM MST	41
Nov 4, 11:30 AM MST	40.1
Nov 4, 10:30 AM MST	39.2
Nov 4, 9:30 AM MST	38.8
Nov 4, 8:30 AM MST	38.7
Nov 4, 7:30 AM MST	38.8
Nov 4, 6:30 AM MST	39.2
Nov 4, 5:30 AM MST	39.7
Nov 4, 4:30 AM MST	40.1
Nov 4, 3:30 AM MST	40.5
Nov 4, 2:30 AM MST	40.8
Nov 4, 1:30 AM MST	41.2
Nov 4, 12:30 AM MST	41.4
Nov 3, 11:30 PM MST	41.7
Nov 3, 10:30 PM MST	42.1
Nov 3, 9:30 PM MST	42.4
Nov 3, 8:30 PM MST	42.6
Nov 3, 7:30 PM MST	43
Nov 3, 6:30 PM MST	43.5
Nov 3, 5:30 PM MST	43.9
Nov 3, 4:30 PM MST	44.2
Nov 3, 3:30 PM MST	44.2
Nov 3, 2:30 PM MST	43.9
Nov 3, 1:30 PM MST	43.2
Nov 3, 12:30 PM MST	42.3
Nov 3, 11:30 AM MST	41.2
Nov 3, 10:30 AM MST	40.3
Nov 3, 9:30 AM MST	39.7
Nov 3, 8:30 AM MST	39.6
Nov 3, 7:30 AM MST	39.7
Nov 3, 6:30 AM MST	40.1
Nov 3, 5:30 AM MST	40.5
Nov 3, 4:30 AM MST	40.8
Nov 3, 3:30 AM MST	41.2
Nov 3, 2:30 AM MST	41.5
Nov 3, 1:30 AM MST	41.7
Nov 3, 12:30 AM MST	42.1
Nov 2, 11:30 PM MST	42.4
Nov 2, 10:30 PM MST	42.8
Nov 2, 9:30 PM MST	43.3
Nov 2, 8:30 PM MST	43.7
Nov 2, 7:30 PM MST	44.1
Nov 2, 6:30 PM MST	44.6
Nov 2, 5:30 PM MST	45
Nov 2, 4:30 PM MST	45.3
Nov 2, 3:30 PM MST	45.5
Nov 2, 2:30 PM MST	45.3
Nov 2, 1:30 PM MST	44.6
Nov 2, 12:30 PM MST	43.7
Nov 2, 11:30 AM MST	42.8
Nov 2, 10:30 AM MST	41.9
Nov 2, 9:30 AM MST	41.4
Nov 2, 8:30 AM MST	41.2
Nov 2, 7:30 AM MST	41.4
Nov 2, 6:30 AM MST	41.7
Nov 2, 5:30 AM MST	42.1
Nov 2, 4:30 AM MST	42.1
Nov 2, 3:30 AM MST	42.3
Nov 2, 2:30 AM MST	42.3
Nov 2, 1:30 AM MST	42.3
Nov 2, 12:30 AM MST	42.3
Nov 1, 11:30 PM MST	42.3
Nov 1, 10:30 PM MST	42.3
Nov 1, 9:30 PM MST	42.3
Nov 1, 8:30 PM MST	42.3
Nov 1, 7:30 PM MST	42.3
Nov 1, 6:30 PM MST	42.3
Nov 1, 5:30 PM MST	42.3
Nov 1, 4:30 PM MST	42.3
Nov 1, 3:30 PM MST	42.3
Nov 1, 2:30 PM MST	42.1
Nov 1, 1:30 PM MST	41.7
Nov 1, 12:30 PM MST	41.4
Nov 1, 11:30 AM MST	41.2
Nov 1, 10:30 AM MST	41
Nov 1, 9:30 AM MST	40.8
Nov 1, 8:30 AM MST	40.8
Nov 1, 7:30 AM MST	40.8
Nov 1, 6:30 AM MST	41
Nov 1, 5:30 AM MST	41
Nov 1, 4:30 AM MST	41.2
Nov 1, 3:30 AM MST	41.4
Nov 1, 2:30 AM MST	41.5
Nov 1, 1:30 AM MST	41.7
Nov 1, 1:30 AM MDT	42.1
Nov 1, 12:30 AM MDT	42.3
Oct 31, 11:30 PM MDT	42.6
Oct 31, 10:30 PM MDT	43
Oct 31, 9:30 PM MDT	43.2
Oct 31, 8:30 PM MDT	43.5
Oct 31, 7:30 PM MDT	43.7
Oct 31, 6:30 PM MDT	43.7
Oct 31, 5:30 PM MDT	43.9
Oct 31, 4:30 PM MDT	43.7
Oct 31, 3:30 PM MDT	43.7
Oct 31, 2:30 PM MDT	43.3
Oct 31, 1:30 PM MDT	42.8
Oct 31, 12:30 PM MDT	42.3
Oct 31, 11:30 AM MDT	41.7
Oct 31, 10:30 AM MDT	41.2
Oct 31, 9:30 AM MDT	41
Oct 31, 8:30 AM MDT	41
Oct 31, 7:30 AM MDT	41
Oct 31, 6:30 AM MDT	41
Oct 31, 5:30 AM MDT	41
Oct 31, 4:30 AM MDT	41
Oct 31, 3:30 AM MDT	41.2
Oct 31, 2:30 AM MDT	41.2
Oct 31, 1:30 AM MDT	41.2
Oct 31, 12:30 AM MDT	41.2
Oct 30, 11:30 PM MDT	41.2
Oct 30, 10:30 PM MDT	41.4
Oct 30, 9:30 PM MDT	41.4
Oct 30, 8:30 PM MDT	41.4
Oct 30, 7:30 PM MDT	41.5
Oct 30, 6:30 PM MDT	41.7
Oct 30, 5:30 PM MDT	41.7
Oct 30, 4:30 PM MDT	41.7
Oct 30, 3:30 PM MDT	41.5
Oct 30, 2:30 PM MDT	41.4
Oct 30, 1:30 PM MDT	41.2
Oct 30, 12:30 PM MDT	41
Oct 30, 11:30 AM MDT	40.8
Oct 30, 10:30 AM MDT	40.6
Oct 30, 9:30 AM MDT	40.6
Oct 30, 8:30 AM MDT	40.6
Oct 30, 7:30 AM MDT	40.6
Oct 30, 6:30 AM MDT	40.6
Oct 30, 5:30 AM MDT	40.8
Oct 30, 4:30 AM MDT	40.8
Oct 30, 3:30 AM MDT	40.8
Oct 30, 2:30 AM MDT	41
Oct 30, 1:30 AM MDT	41
Oct 30, 12:30 AM MDT	41
Oct 29, 11:30 PM MDT	41.2
Oct 29, 10:30 PM MDT	41.2
Oct 29, 9:30 PM MDT	41.4
Oct 29, 8:30 PM MDT	41.4

Where this gauge is

Where Sun River at Simms MT sits, with 2 other gauges on the same river 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 41°F now; the highest in the last 24 hours was 42.1°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.”

Reading Sun River at Simms 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, 7:30 PM MST

270

2.8

167–240

Nov 5, 6:30 PM MST

270

2.8

41.5

167–240

Nov 5, 5:30 PM MST

276

2.81

41.9

167–240

Nov 5, 4:30 PM MST

270

2.8

42.1

167–240

Nov 5, 3:30 PM MST

270

2.8

41.9

167–240

Nov 5, 2:30 PM MST

270

2.8

41.5

167–240

Nov 5, 1:30 PM MST

270

2.8

41.2

167–240

Nov 5, 12:30 PM MST

270

2.8

40.5

167–240

Nov 5, 11:30 AM MST

270

2.8

40.1

167–240

Nov 5, 10:30 AM MST

276

2.81

39.2

167–240

Nov 5, 9:30 AM MST

276

2.81

167–240

Nov 5, 8:30 AM MST

276

2.81

38.7

167–240

Nov 5, 7:30 AM MST

270

2.8

38.8

167–240

Nov 5, 6:30 AM MST

276

2.81

39.2

167–240

Nov 5, 5:30 AM MST

276

2.81

39.4

167–240

Nov 5, 4:30 AM MST

276

2.81

39.6

167–240

Nov 5, 3:30 AM MST

276

2.81

39.9

167–240

Nov 5, 2:30 AM MST

276

2.81

40.1

167–240

Nov 5, 1:30 AM MST

276

2.81

40.3

167–240

Nov 5, 12:30 AM MST

276

2.81

40.3

167–240

Nov 4, 11:30 PM MST

276

2.81

40.6

166–246

Nov 4, 10:30 PM MST

276

2.81

166–246

Nov 4, 9:30 PM MST

282

2.82

41.4

166–246

Nov 4, 8:30 PM MST

276

2.81

41.7

166–246

Nov 4, 7:30 PM MST

282

2.82

42.1

166–246

Nov 4, 6:30 PM MST

282

2.82

42.4

166–246

Nov 4, 5:30 PM MST

282

2.82

42.8

166–246

Nov 4, 4:30 PM MST

276

2.81

43.2

166–246

Nov 4, 3:30 PM MST

270

2.8

43.2

166–246

Nov 4, 2:30 PM MST

270

2.8

42.6

166–246

Nov 4, 1:30 PM MST

270

2.8

41.9

166–246

Nov 4, 12:30 PM MST

276

2.81

166–246

Nov 4, 11:30 AM MST

276

2.81

40.1

166–246

Nov 4, 10:30 AM MST

276

2.81

39.2

166–246

Nov 4, 9:30 AM MST

276

2.81

38.8

166–246

Nov 4, 8:30 AM MST

276

2.81

38.7

166–246

Nov 4, 7:30 AM MST

270

2.8

38.8

166–246

Nov 4, 6:30 AM MST

276

2.81

39.2

166–246

Nov 4, 5:30 AM MST

276

2.81

39.7

166–246

Nov 4, 4:30 AM MST

276

2.81

40.1

166–246

Nov 4, 3:30 AM MST

270

2.8

40.5

166–246

Nov 4, 2:30 AM MST

276

2.81

40.8

166–246

Nov 4, 1:30 AM MST

276

2.81

41.2

166–246

Nov 4, 12:30 AM MST

276

2.81

41.4

166–246

Nov 3, 11:30 PM MST

276

2.81

41.7

166–246

Nov 3, 10:30 PM MST

276

2.81

42.1

166–246

Nov 3, 9:30 PM MST

276

2.81

42.4

166–246

Nov 3, 8:30 PM MST

276

2.81

42.6

166–246

Nov 3, 7:30 PM MST

276

2.81

166–246

Nov 3, 6:30 PM MST

276

2.81

43.5

166–246

Nov 3, 5:30 PM MST

276

2.81

43.9

166–246

Nov 3, 4:30 PM MST

276

2.81

44.2

166–246

Nov 3, 3:30 PM MST

276

2.81

44.2

166–246

Nov 3, 2:30 PM MST

282

2.82

43.9

166–246

Nov 3, 1:30 PM MST

276

2.81

43.2

166–246

Nov 3, 12:30 PM MST

282

2.82

42.3

166–246

Nov 3, 11:30 AM MST

282

2.82

41.2

166–246

Nov 3, 10:30 AM MST

282

2.82

40.3

166–246

Nov 3, 9:30 AM MST

282

2.82

39.7

166–246

Nov 3, 8:30 AM MST

276

2.81

39.6

166–246

Nov 3, 7:30 AM MST

276

2.81

39.7

166–246

Nov 3, 6:30 AM MST

276

2.81

40.1

166–246

Nov 3, 5:30 AM MST

276

2.81

40.5

166–246

Nov 3, 4:30 AM MST

276

2.81

40.8

166–246

Nov 3, 3:30 AM MST

282

2.82

41.2

166–246

Nov 3, 2:30 AM MST

282

2.82

41.5

166–246

Nov 3, 1:30 AM MST

282

2.82

41.7

166–246

Nov 3, 12:30 AM MST

282

2.82

42.1

166–246

Nov 2, 11:30 PM MST

282

2.82

42.4

165–236

Nov 2, 10:30 PM MST

282

2.82

42.8

165–236

Nov 2, 9:30 PM MST

282

2.82

43.3

165–236

Nov 2, 8:30 PM MST

282

2.82

43.7

165–236

Nov 2, 7:30 PM MST

288

2.83

44.1

165–236

Nov 2, 6:30 PM MST

288

2.83

44.6

165–236

Nov 2, 5:30 PM MST

288

2.83

165–236

Nov 2, 4:30 PM MST

288

2.83

45.3

165–236

Nov 2, 3:30 PM MST

288

2.83

45.5

165–236

Nov 2, 2:30 PM MST

288

2.83

45.3

165–236

Nov 2, 1:30 PM MST

294

2.84

44.6

165–236

Nov 2, 12:30 PM MST

294

2.84

43.7

165–236

Nov 2, 11:30 AM MST

294

2.84

42.8

165–236

Nov 2, 10:30 AM MST

300

2.85

41.9

165–236

Nov 2, 9:30 AM MST

300

2.85

41.4

165–236

Nov 2, 8:30 AM MST

294

2.84

41.2

165–236

Nov 2, 7:30 AM MST

294

2.84

41.4

165–236

Nov 2, 6:30 AM MST

294

2.84

41.7

165–236

Nov 2, 5:30 AM MST

294

2.84

42.1

165–236

Nov 2, 4:30 AM MST

294

2.84

42.1

165–236

Nov 2, 3:30 AM MST

300

2.85

42.3

165–236

Nov 2, 2:30 AM MST

300

2.85

42.3

165–236

Nov 2, 1:30 AM MST

300

2.85

42.3

165–236

Nov 2, 12:30 AM MST

300

2.85

42.3

165–236

Nov 1, 11:30 PM MST

300

2.85

42.3

160–241

Nov 1, 10:30 PM MST

300

2.85

42.3

160–241

Nov 1, 9:30 PM MST

300

2.85

42.3

160–241

Nov 1, 8:30 PM MST

300

2.85

42.3

160–241

Nov 1, 7:30 PM MST

294

2.84

42.3

160–241

Nov 1, 6:30 PM MST

294

2.84

42.3

160–241

Nov 1, 5:30 PM MST

294

2.84

42.3

160–241

Nov 1, 4:30 PM MST

294

2.84

42.3

160–241

Nov 1, 3:30 PM MST

294

2.84

42.3

160–241

Nov 1, 2:30 PM MST

288

2.83

42.1

160–241

Nov 1, 1:30 PM MST

288

2.83

41.7

160–241

Nov 1, 12:30 PM MST

288

2.83

41.4

160–241

Nov 1, 11:30 AM MST

282

2.82

41.2

160–241

Nov 1, 10:30 AM MST

282

2.82

160–241

Nov 1, 9:30 AM MST

282

2.82

40.8

160–241

Nov 1, 8:30 AM MST

276

2.81

40.8

160–241

Nov 1, 7:30 AM MST

276

2.81

40.8

160–241

Nov 1, 6:30 AM MST

276

2.81

160–241

Nov 1, 5:30 AM MST

276

2.81

160–241

Nov 1, 4:30 AM MST

276

2.81

41.2

160–241

Nov 1, 3:30 AM MST

276

2.81

41.4

160–241

Nov 1, 2:30 AM MST

276

2.81

41.5

160–241

Nov 1, 1:30 AM MST

276

2.81

41.7

160–241

Nov 1, 1:30 AM MDT

276

2.81

42.1

160–241

Nov 1, 12:30 AM MDT

276

2.81

42.3

160–241

Oct 31, 11:30 PM MDT

276

2.81

42.6

159–232

Oct 31, 10:30 PM MDT

276

2.81

159–232

Oct 31, 9:30 PM MDT

276

2.81

43.2

159–232

Oct 31, 8:30 PM MDT

282

2.82

43.5

159–232

Oct 31, 7:30 PM MDT

276

2.81

43.7

159–232

Oct 31, 6:30 PM MDT

276

2.81

43.7

159–232

Oct 31, 5:30 PM MDT

282

2.82

43.9

159–232

Oct 31, 4:30 PM MDT

282

2.82

43.7

159–232

Oct 31, 3:30 PM MDT

282

2.82

43.7

159–232

Oct 31, 2:30 PM MDT

282

2.82

43.3

159–232

Oct 31, 1:30 PM MDT

282

2.82

42.8

159–232

Oct 31, 12:30 PM MDT

282

2.82

42.3

159–232

Oct 31, 11:30 AM MDT

282

2.82

41.7

159–232

Oct 31, 10:30 AM MDT

282

2.82

41.2

159–232

Oct 31, 9:30 AM MDT

282

2.82

159–232

Oct 31, 8:30 AM MDT

282

2.82

159–232

Oct 31, 7:30 AM MDT

282

2.82

159–232

Oct 31, 6:30 AM MDT

282

2.82

159–232

Oct 31, 5:30 AM MDT

282

2.82

159–232

Oct 31, 4:30 AM MDT

282

2.82

159–232

Oct 31, 3:30 AM MDT

282

2.82

41.2

159–232

Oct 31, 2:30 AM MDT

282

2.82

41.2

159–232

Oct 31, 1:30 AM MDT

282

2.82

41.2

159–232

Oct 31, 12:30 AM MDT

282

2.82

41.2

159–232

Oct 30, 11:30 PM MDT

282

2.82

41.2

159–234

Oct 30, 10:30 PM MDT

282

2.82

41.4

159–234

Oct 30, 9:30 PM MDT

282

2.82

41.4

159–234

Oct 30, 8:30 PM MDT

282

2.82

41.4

159–234

Oct 30, 7:30 PM MDT

282

2.82

41.5

159–234

Oct 30, 6:30 PM MDT

282

2.82

41.7

159–234

Oct 30, 5:30 PM MDT

282

2.82

41.7

159–234

Oct 30, 4:30 PM MDT

282

2.82

41.7

159–234

Oct 30, 3:30 PM MDT

282

2.82

41.5

159–234

Oct 30, 2:30 PM MDT

282

2.82

41.4

159–234

Oct 30, 1:30 PM MDT

282

2.82

41.2

159–234

Oct 30, 12:30 PM MDT

282

2.82

159–234

Oct 30, 11:30 AM MDT

282

2.82

40.8

159–234

Oct 30, 10:30 AM MDT

288

2.83

40.6

159–234

Oct 30, 9:30 AM MDT

282

2.82

40.6

159–234

Oct 30, 8:30 AM MDT

288

2.83

40.6

159–234

Oct 30, 7:30 AM MDT

288

2.83

40.6

159–234

Oct 30, 6:30 AM MDT

288

2.83

40.6

159–234

Oct 30, 5:30 AM MDT

282

2.82

40.8

159–234

Oct 30, 4:30 AM MDT

282

2.82

40.8

159–234

Oct 30, 3:30 AM MDT

282

2.82

40.8

159–234

Oct 30, 2:30 AM MDT

282

2.82

159–234

Oct 30, 1:30 AM MDT

282

2.82

159–234

Oct 30, 12:30 AM MDT

282

2.82

159–234

Oct 29, 11:30 PM MDT

282

2.82

41.2

162–237

Oct 29, 10:30 PM MDT

282

2.82

41.2

162–237

Oct 29, 9:30 PM MDT

282

2.82

41.4

162–237

Oct 29, 8:30 PM MDT

276

2.81

41.4

162–237

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, 7:30 PM MST

Nov 5, 6:30 PM MST

41.5

Nov 5, 5:30 PM MST

41.9

Nov 5, 4:30 PM MST

42.1

Nov 5, 3:30 PM MST

41.9

Nov 5, 2:30 PM MST

41.5

Nov 5, 1:30 PM MST

41.2

Nov 5, 12:30 PM MST

40.5

Nov 5, 11:30 AM MST

40.1

Nov 5, 10:30 AM MST

39.2

Nov 5, 9:30 AM MST

Nov 5, 8:30 AM MST

38.7

Nov 5, 7:30 AM MST

38.8

Nov 5, 6:30 AM MST

39.2

Nov 5, 5:30 AM MST

39.4

Nov 5, 4:30 AM MST

39.6

Nov 5, 3:30 AM MST

39.9

Nov 5, 2:30 AM MST

40.1

Nov 5, 1:30 AM MST

40.3

Nov 5, 12:30 AM MST

40.3

Nov 4, 11:30 PM MST

40.6

Nov 4, 10:30 PM MST

Nov 4, 9:30 PM MST

41.4

Nov 4, 8:30 PM MST

41.7

Nov 4, 7:30 PM MST

42.1

Nov 4, 6:30 PM MST

42.4

Nov 4, 5:30 PM MST

42.8

Nov 4, 4:30 PM MST

43.2

Nov 4, 3:30 PM MST

43.2

Nov 4, 2:30 PM MST

42.6

Nov 4, 1:30 PM MST

41.9

Nov 4, 12:30 PM MST

Nov 4, 11:30 AM MST

40.1

Nov 4, 10:30 AM MST

39.2

Nov 4, 9:30 AM MST

38.8

Nov 4, 8:30 AM MST

38.7

Nov 4, 7:30 AM MST

38.8

Nov 4, 6:30 AM MST

39.2

Nov 4, 5:30 AM MST

39.7

Nov 4, 4:30 AM MST

40.1

Nov 4, 3:30 AM MST

40.5

Nov 4, 2:30 AM MST

40.8

Nov 4, 1:30 AM MST

41.2

Nov 4, 12:30 AM MST

41.4

Nov 3, 11:30 PM MST

41.7

Nov 3, 10:30 PM MST

42.1

Nov 3, 9:30 PM MST

42.4

Nov 3, 8:30 PM MST

42.6

Nov 3, 7:30 PM MST

Nov 3, 6:30 PM MST

43.5

Nov 3, 5:30 PM MST

43.9

Nov 3, 4:30 PM MST

44.2

Nov 3, 3:30 PM MST

44.2

Nov 3, 2:30 PM MST

43.9

Nov 3, 1:30 PM MST

43.2

Nov 3, 12:30 PM MST

42.3

Nov 3, 11:30 AM MST

41.2

Nov 3, 10:30 AM MST

40.3

Nov 3, 9:30 AM MST

39.7

Nov 3, 8:30 AM MST

39.6

Nov 3, 7:30 AM MST

39.7

Nov 3, 6:30 AM MST

40.1

Nov 3, 5:30 AM MST

40.5

Nov 3, 4:30 AM MST

40.8

Nov 3, 3:30 AM MST

41.2

Nov 3, 2:30 AM MST

41.5

Nov 3, 1:30 AM MST

41.7

Nov 3, 12:30 AM MST

42.1

Nov 2, 11:30 PM MST

42.4

Nov 2, 10:30 PM MST

42.8

Nov 2, 9:30 PM MST

43.3

Nov 2, 8:30 PM MST

43.7

Nov 2, 7:30 PM MST

44.1

Nov 2, 6:30 PM MST

44.6

Nov 2, 5:30 PM MST

Nov 2, 4:30 PM MST

45.3

Nov 2, 3:30 PM MST

45.5

Nov 2, 2:30 PM MST

45.3

Nov 2, 1:30 PM MST

44.6

Nov 2, 12:30 PM MST

43.7

Nov 2, 11:30 AM MST

42.8

Nov 2, 10:30 AM MST

41.9

Nov 2, 9:30 AM MST

41.4

Nov 2, 8:30 AM MST

41.2

Nov 2, 7:30 AM MST

41.4

Nov 2, 6:30 AM MST

41.7

Nov 2, 5:30 AM MST

42.1

Nov 2, 4:30 AM MST

42.1

Nov 2, 3:30 AM MST

42.3

Nov 2, 2:30 AM MST

42.3

Nov 2, 1:30 AM MST

42.3

Nov 2, 12:30 AM MST

42.3

Nov 1, 11:30 PM MST

42.3

Nov 1, 10:30 PM MST

42.3

Nov 1, 9:30 PM MST

42.3

Nov 1, 8:30 PM MST

42.3

Nov 1, 7:30 PM MST

42.3

Nov 1, 6:30 PM MST

42.3

Nov 1, 5:30 PM MST

42.3

Nov 1, 4:30 PM MST

42.3

Nov 1, 3:30 PM MST

42.3

Nov 1, 2:30 PM MST

42.1

Nov 1, 1:30 PM MST

41.7

Nov 1, 12:30 PM MST

41.4

Nov 1, 11:30 AM MST

41.2

Nov 1, 10:30 AM MST

Nov 1, 9:30 AM MST

40.8

Nov 1, 8:30 AM MST

40.8

Nov 1, 7:30 AM MST

40.8

Nov 1, 6:30 AM MST

Nov 1, 5:30 AM MST

Nov 1, 4:30 AM MST

41.2

Nov 1, 3:30 AM MST

41.4

Nov 1, 2:30 AM MST

41.5

Nov 1, 1:30 AM MST

41.7

Nov 1, 1:30 AM MDT

42.1

Nov 1, 12:30 AM MDT

42.3

Oct 31, 11:30 PM MDT

42.6

Oct 31, 10:30 PM MDT

Oct 31, 9:30 PM MDT

43.2

Oct 31, 8:30 PM MDT

43.5

Oct 31, 7:30 PM MDT

43.7

Oct 31, 6:30 PM MDT

43.7

Oct 31, 5:30 PM MDT

43.9

Oct 31, 4:30 PM MDT

43.7

Oct 31, 3:30 PM MDT

43.7

Oct 31, 2:30 PM MDT

43.3

Oct 31, 1:30 PM MDT

42.8

Oct 31, 12:30 PM MDT

42.3

Oct 31, 11:30 AM MDT

41.7

Oct 31, 10:30 AM MDT

41.2

Oct 31, 9:30 AM MDT

Oct 31, 8:30 AM MDT

Oct 31, 7:30 AM MDT

Oct 31, 6:30 AM MDT

Oct 31, 5:30 AM MDT

Oct 31, 4:30 AM MDT

Oct 31, 3:30 AM MDT

41.2

Oct 31, 2:30 AM MDT

41.2

Oct 31, 1:30 AM MDT

41.2

Oct 31, 12:30 AM MDT

41.2

Oct 30, 11:30 PM MDT

41.2

Oct 30, 10:30 PM MDT

41.4

Oct 30, 9:30 PM MDT

41.4

Oct 30, 8:30 PM MDT

41.4

Oct 30, 7:30 PM MDT

41.5

Oct 30, 6:30 PM MDT

41.7

Oct 30, 5:30 PM MDT

41.7

Oct 30, 4:30 PM MDT

41.7

Oct 30, 3:30 PM MDT

41.5

Oct 30, 2:30 PM MDT

41.4

Oct 30, 1:30 PM MDT

41.2

Oct 30, 12:30 PM MDT

Oct 30, 11:30 AM MDT

40.8

Oct 30, 10:30 AM MDT

40.6

Oct 30, 9:30 AM MDT

40.6

Oct 30, 8:30 AM MDT

40.6

Oct 30, 7:30 AM MDT

40.6

Oct 30, 6:30 AM MDT

40.6

Oct 30, 5:30 AM MDT

40.8

Oct 30, 4:30 AM MDT

40.8

Oct 30, 3:30 AM MDT

40.8

Oct 30, 2:30 AM MDT

Oct 30, 1:30 AM MDT

Oct 30, 12:30 AM MDT

Oct 29, 11:30 PM MDT

41.2

Oct 29, 10:30 PM MDT

41.2

Oct 29, 9:30 PM MDT

41.4

Oct 29, 8:30 PM MDT

41.4

Sun River at Simms MT

Good: Good conditions: fish normally

Flow and the normal range

Water temperature

Where this gauge is

Conditions for fishing general guidance

Water temperature for trout, salmon and steelhead

Good: Good conditions: fish normally

Flow and the normal range

Water temperature

Where this gauge is

Conditions for fishing general guidance

Water temperature for trout, salmon and steelhead

Species

Safety

Official flood stage · National Weather Service