A small USGS stream gaging station with an antenna on its roof under a cloudy evening sky

Check a river’s flow.

Search any USGS stream gauge by river or station name, by state, or near you. Each card shows the latest flow and how it compares with the normal range for today’s date; open a gauge for the full picture: trend, water temperature and what it means for trout, safety and the official NWS flood stage.

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7 USGS gauges near your location (within 30 miles)

LIGHTNING CREEK AT CLARK FORK ID

USGS 12392155

Caution: Low water: go quiet and stealthy

No water temperature here. The full view adds the NWS forecast.

Discharge: 9.76 ft³/s
Gauge height: 8.3 ft

Much below normal for Nov 5 Steady · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 7:45 PM PST	9.76	8.3
Nov 5, 6:45 PM PST	10	8.31
Nov 5, 5:45 PM PST	10	8.31
Nov 5, 4:45 PM PST	10	8.31
Nov 5, 3:45 PM PST	10	8.31
Nov 5, 2:45 PM PST	10	8.31
Nov 5, 1:45 PM PST	10	8.31
Nov 5, 12:45 PM PST	10.3	8.32
Nov 5, 11:45 AM PST	10.6	8.33
Nov 5, 10:45 AM PST	10.3	8.32
Nov 5, 9:45 AM PST	10.3	8.32
Nov 5, 8:45 AM PST	10	8.31
Nov 5, 7:45 AM PST	10	8.31
Nov 5, 6:45 AM PST	10	8.31
Nov 5, 5:45 AM PST	10.3	8.32
Nov 5, 4:45 AM PST	10	8.31
Nov 5, 3:45 AM PST	10	8.31
Nov 5, 2:45 AM PST	10	8.31
Nov 5, 1:45 AM PST	10.3	8.32
Nov 5, 12:45 AM PST	10.3	8.32
Nov 4, 11:45 PM PST	10.3	8.32
Nov 4, 10:45 PM PST	10.3	8.32
Nov 4, 9:45 PM PST	10.6	8.33
Nov 4, 8:45 PM PST	10.3	8.32
Nov 4, 7:45 PM PST	10.3	8.32
Nov 4, 6:45 PM PST	10.3	8.32
Nov 4, 5:45 PM PST	10.6	8.33

Reading Nov 5, 7:45 PM PST · checked 8:09 PM PST

Open full screen USGS NWS

13.3 miles away in a straight line

CLARK FORK RIVER BELOW CABINET GORGE DAM ID

USGS 12391950

Limited data: Normal flow for the date: no water temperature here

No water temperature here. The full view adds the NWS forecast.

Discharge: 8,770 ft³/s
Gauge height: 8.6 ft

Normal for Nov 5 Falling · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 7:45 PM PST	8,770	8.6
Nov 5, 6:45 PM PST	10,100	9.03
Nov 5, 5:45 PM PST	15,400	10.5
Nov 5, 4:45 PM PST	14,400	10.3
Nov 5, 3:45 PM PST	5,590	7.45
Nov 5, 2:45 PM PST	3,710	6.7
Nov 5, 1:45 PM PST	3,740	6.71
Nov 5, 12:45 PM PST	4,010	6.83
Nov 5, 11:45 AM PST	4,790	7.15
Nov 5, 10:45 AM PST	7,200	8.05
Nov 5, 9:45 AM PST	8,110	8.38
Nov 5, 8:45 AM PST	9,250	8.76
Nov 5, 7:45 AM PST	13,800	10.1
Nov 5, 6:45 AM PST	10,600	9.18
Nov 5, 5:45 AM PST	4,320	6.96
Nov 5, 4:45 AM PST	4,250	6.93
Nov 5, 3:45 AM PST	4,320	6.96
Nov 5, 2:45 AM PST	4,370	6.98
Nov 5, 1:45 AM PST	4,850	7.17
Nov 5, 12:45 AM PST	5,220	7.31
Nov 4, 11:45 PM PST	6,690	7.86
Nov 4, 10:45 PM PST	10,400	9.12
Nov 4, 9:45 PM PST	14,800	10.3
Nov 4, 8:45 PM PST	18,000	11.1
Nov 4, 7:45 PM PST	18,300	11.2
Nov 4, 6:45 PM PST	18,000	11.1
Nov 4, 5:45 PM PST	18,900	11.3

Yaak River near Troy MT

USGS 12304500

Caution: Low water: go quiet and stealthy

No water temperature here. The full view adds the NWS forecast.

Discharge: 91.6 ft³/s
Gauge height: 2.93 ft

Much below normal for Nov 5 Steady · 24 h Below NWS action stage

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:45 PM MST	91.6	2.93
Nov 5, 7:45 PM MST	91.6	2.93
Nov 5, 6:45 PM MST	91.6	2.93
Nov 5, 5:45 PM MST	91.6	2.93
Nov 5, 4:45 PM MST	91.6	2.93
Nov 5, 3:45 PM MST	91.6	2.93
Nov 5, 2:45 PM MST	91.6	2.93
Nov 5, 1:45 PM MST	91.6	2.93
Nov 5, 12:45 PM MST	91.6	2.93
Nov 5, 11:45 AM MST	91.6	2.93
Nov 5, 10:45 AM MST	91.6	2.93
Nov 5, 9:45 AM MST	91.6	2.93
Nov 5, 8:45 AM MST	91.6	2.93
Nov 5, 7:45 AM MST	91.6	2.93
Nov 5, 6:45 AM MST	91.6	2.93
Nov 5, 5:45 AM MST	91.6	2.93
Nov 5, 4:45 AM MST	91.6	2.93
Nov 5, 3:45 AM MST	93.8	2.94
Nov 5, 2:45 AM MST	91.6	2.93
Nov 5, 1:45 AM MST	91.6	2.93
Nov 5, 12:45 AM MST	91.6	2.93
Nov 4, 11:45 PM MST	93.8	2.94
Nov 4, 10:45 PM MST	93.8	2.94
Nov 4, 9:45 PM MST	93.8	2.94
Nov 4, 8:45 PM MST	93.8	2.94
Nov 4, 7:45 PM MST	93.8	2.94
Nov 4, 6:45 PM MST	93.8	2.94

KOOTENAI RIVER AT LEONIA, ID

USGS 12305000

Good: Good trout conditions: fish normally

The full view adds the NWS forecast.

Discharge: 7,060 ft³/s
Gauge height: 11.8 ft
Water temp: 51.1°F

Normal for Nov 5 Falling · 24 h

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)	Water temp (°F)
Nov 5, 7:15 PM PST	7,060	11.8	51.1
Nov 5, 6:15 PM PST	7,040	11.8	51.1
Nov 5, 5:15 PM PST	7,080	11.8	51.3
Nov 5, 4:15 PM PST	7,060	11.8	51.3
Nov 5, 3:15 PM PST	7,100	11.8	51.1
Nov 5, 2:15 PM PST	7,180	11.9	51.1
Nov 5, 1:15 PM PST	7,300	11.9	51.1
Nov 5, 12:15 PM PST	7,540	12	51.3
Nov 5, 11:15 AM PST	7,820	12.2	51.3
Nov 5, 10:15 AM PST	8,200	12.4	51.3
Nov 5, 9:15 AM PST	8,710	12.6	51.4
Nov 5, 8:15 AM PST	9,090	12.8	51.4
Nov 5, 7:15 AM PST	9,380	12.9	51.6
Nov 5, 6:15 AM PST	9,550	13	51.6
Nov 5, 5:15 AM PST	9,600	13	51.6
Nov 5, 4:15 AM PST	9,600	13	51.6
Nov 5, 3:15 AM PST	9,660	13	51.8
Nov 5, 2:15 AM PST	9,710	13.1	51.8
Nov 5, 1:15 AM PST	9,770	13.1	51.8
Nov 5, 12:15 AM PST	9,710	13.1	51.8
Nov 4, 11:15 PM PST	9,660	13	51.8
Nov 4, 10:15 PM PST	9,710	13.1	51.8
Nov 4, 9:15 PM PST	9,640	13	51.8
Nov 4, 8:15 PM PST	9,660	13	52
Nov 4, 7:15 PM PST	9,690	13	52
Nov 4, 6:15 PM PST	9,660	13	52
Nov 4, 5:15 PM PST	9,690	13	52.2

PACK RIVER BLW SAND CREEK NR COLBURN , ID
USGS 12392310
No current reading. USGS answered but returned no recent value for this gauge (ice, maintenance or a seasonal gauge).
No flow at this gauge. USGS does not publish discharge here, so there are no flow statistics either; it reports what is shown. We found no other gauge on the same river that publishes flow.
Open full screen USGS
26.4 miles away in a straight line
Libby Wetland Site bl Schrieber Lake nr Libby, MT
USGS 480608115242901
No current reading. USGS answered but returned no recent value for this gauge (ice, maintenance or a seasonal gauge).
Open full screen USGS
27.1 miles away in a straight line

Fisher River near Libby MT

USGS 12302055

Caution: Low water: go quiet and stealthy

No water temperature here. The full view adds the NWS forecast.

Discharge: 76 ft³/s
Gauge height: 2.8 ft

Lowest for this date on record for Nov 5 Steady · 24 h Below NWS action stage

Last 24 hours

View data as a table

Discharge, last 7 days: readings, about hourly, newest first. USGS provisional data may be revised.
Time	Discharge (ft³/s)	Gauge height (ft)
Nov 5, 8:45 PM MST	76	2.8
Nov 5, 7:45 PM MST	76	2.8
Nov 5, 6:45 PM MST	76	2.8
Nov 5, 5:45 PM MST	76	2.8
Nov 5, 4:45 PM MST	76	2.8
Nov 5, 3:45 PM MST	76	2.8
Nov 5, 2:45 PM MST	76	2.8
Nov 5, 1:45 PM MST	76	2.8
Nov 5, 12:45 PM MST	76	2.8
Nov 5, 11:45 AM MST	76	2.8
Nov 5, 10:45 AM MST	76	2.8
Nov 5, 9:45 AM MST	76	2.8
Nov 5, 8:45 AM MST	76	2.8
Nov 5, 7:45 AM MST	76	2.8
Nov 5, 6:45 AM MST	76	2.8
Nov 5, 5:45 AM MST	76	2.8
Nov 5, 4:45 AM MST	76	2.8
Nov 5, 3:45 AM MST	76	2.8
Nov 5, 2:45 AM MST	76	2.8
Nov 5, 1:45 AM MST	76	2.8
Nov 5, 12:45 AM MST	76	2.8
Nov 4, 11:45 PM MST	76	2.8
Nov 4, 10:45 PM MST	76	2.8
Nov 4, 9:45 PM MST	76	2.8
Nov 4, 8:45 PM MST	76	2.8
Nov 4, 7:45 PM MST	76	2.8
Nov 4, 6:45 PM MST	76	2.8

Checked Nov 5, 8:09 PM PST; 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.

LIGHTNING CREEK AT CLARK FORK ID
USGS 12392155 · ID · live flow · gauge height · 13.3 mi
Reading the gauge…
CLARK FORK RIVER BELOW CABINET GORGE DAM ID
USGS 12391950 · ID · live flow · gauge height · 13.5 mi
Reading the gauge…
Yaak River near Troy MT
USGS 12304500 · MT · live flow · gauge height · 20.6 mi
Reading the gauge…
KOOTENAI RIVER AT LEONIA, ID
USGS 12305000 · ID · live flow · gauge height · water temperature · 24.9 mi
Reading the gauge…
PACK RIVER BLW SAND CREEK NR COLBURN , ID
USGS 12392310 · ID · no flow · gauge height · 26.4 mi
Reading the gauge…
Libby Wetland Site bl Schrieber Lake nr Libby, MT
USGS 480608115242901 · MT · live flow · gauge height · 27.1 mi
Reading the gauge…
Fisher River near Libby MT
USGS 12302055 · MT · live flow · gauge height · 29.7 mi
Reading the gauge…

Quick picks: our 2,852 waters by state

Each state opens its USGS gauges and our water pages there; a water opens the live cards for its gauges, or the NOAA tides for flats and surf.

Search covers 11,178 USGS stream gauges that reported discharge, gauge height or water temperature in the 183 days before 2026-10-23 (USGS series catalog); readings are fetched live when a gauge is shown.

Where these numbers come from

Discharge, gauge height, water temperature and water quality: U.S. Geological Survey readings (provisional, can be revised), cached for 15 minutes. Where USGS publishes a gauge’s flow only once a day, the latest daily mean is shown with its date.
Normal range: the 25th to 75th percentile of daily mean flow for the same calendar day over the gauge’s record (USGS daily statistics), classed as USGS does (hyswap).
Temperature guidance for trout quotes the gauge’s own state fish and wildlife agency; where we found none, it says so and quotes federal guidance (National Park Service, U.S. Fish and Wildlife Service). Cold-water safety quotes the NWS; dissolved oxygen and pH are read against EPA criteria. Each line names its source.
Flood stage and forecasts: the National Weather Service’s National Water Prediction Service and its Turn Around Don’t Drown guidance. Tides: NOAA Tides & Currents.

General guidance, not a fishing forecast, a safety guarantee or a statement about access. Planning a trip? The trip planner shows these readings on every day you fish a water.