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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5 USGS gauges near your location (within 30 miles)

Flathead River at Foys Bend nr Kalispell MT
USGS 12366500
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. Flow on the same river: Flathead River at Columbia Falls MT (USGS 12363000, 14.6 miles away).
Open full screen USGS NWS
17.3 miles away in a straight line

Flathead River near Polson MT

USGS 12372000

Good: Good conditions: fish normally

The full view adds the NWS forecast.

Discharge: 7,390 ft³/s
Gauge height: 5.53 ft
Water temp: 47.5°F

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)	Water temp (°F)
Nov 5, 7:50 PM MST	7,390	5.53	47.5
Nov 5, 6:55 PM MST	7,210	5.45	47.5
Nov 5, 6:00 PM MST	7,210	5.45	47.5
Nov 5, 5:05 PM MST	7,210	5.45	47.5
Nov 5, 4:10 PM MST	7,210	5.45	–
Nov 5, 3:15 PM MST	7,210	5.45	–
Nov 5, 2:20 PM MST	7,210	5.45	–
Nov 5, 1:25 PM MST	7,230	5.46	47.7
Nov 5, 12:30 PM MST	7,210	5.45	47.7
Nov 5, 11:35 AM MST	7,210	5.45	47.7
Nov 5, 10:40 AM MST	7,210	5.45	47.7
Nov 5, 9:45 AM MST	7,210	5.45	47.7
Nov 5, 8:50 AM MST	7,210	5.45	47.7
Nov 5, 7:55 AM MST	7,210	5.45	47.7
Nov 5, 7:00 AM MST	7,210	5.45	47.7
Nov 5, 6:05 AM MST	7,210	5.45	47.7
Nov 5, 5:10 AM MST	7,210	5.45	–
Nov 5, 4:15 AM MST	7,210	5.45	–
Nov 5, 3:20 AM MST	7,210	5.45	–
Nov 5, 2:25 AM MST	7,210	5.45	47.8
Nov 5, 1:30 AM MST	7,210	5.45	47.8
Nov 5, 12:35 AM MST	7,210	5.45	47.8
Nov 4, 11:40 PM MST	7,210	5.45	47.8
Nov 4, 10:45 PM MST	7,210	5.45	47.8
Nov 4, 9:50 PM MST	7,210	5.45	47.8
Nov 4, 8:55 PM MST	7,210	5.45	47.8
Nov 4, 8:00 PM MST	7,210	5.45	48
Nov 4, 7:05 PM MST	7,210	5.45	48
Nov 4, 6:10 PM MST	7,210	5.45	–

Reading Nov 5, 7:50 PM MST · checked 8:17 PM MST

Open full screen USGS NWS

On our page for Flathead River

18.4 miles away in a straight line

Stillwater River at Lawrence Park, at Kalispell

USGS 12365700

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

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

Discharge: 89.3 ft³/s
Gauge height: 2.79 ft

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, 7:45 PM MST	89.3	2.79
Nov 5, 6:45 PM MST	89.3	2.79
Nov 5, 5:45 PM MST	89.3	2.79
Nov 5, 4:45 PM MST	89.3	2.79
Nov 5, 3:45 PM MST	89.3	2.79
Nov 5, 2:45 PM MST	89.3	2.79
Nov 5, 1:45 PM MST	89.3	2.79
Nov 5, 12:45 PM MST	89.3	2.79
Nov 5, 11:45 AM MST	89.3	2.79
Nov 5, 10:45 AM MST	89.3	2.79
Nov 5, 9:45 AM MST	89.3	2.79
Nov 5, 8:45 AM MST	89.3	2.79
Nov 5, 7:45 AM MST	89.3	2.79
Nov 5, 6:45 AM MST	89.3	2.79
Nov 5, 5:45 AM MST	89.3	2.79
Nov 5, 4:45 AM MST	89.3	2.79
Nov 5, 3:45 AM MST	89.3	2.79
Nov 5, 2:45 AM MST	89.3	2.79
Nov 5, 1:45 AM MST	89.3	2.79
Nov 5, 12:45 AM MST	89.3	2.79
Nov 4, 11:45 PM MST	89.3	2.79
Nov 4, 10:45 PM MST	89.3	2.79
Nov 4, 9:45 PM MST	89.3	2.79
Nov 4, 8:45 PM MST	89.3	2.79
Nov 4, 7:45 PM MST	89.3	2.79
Nov 4, 6:45 PM MST	89.3	2.79
Nov 4, 5:45 PM MST	89.3	2.79

Swan River near Bigfork, MT

USGS 12370000

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

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

Discharge: 444 ft³/s
Gauge height: 2.3 ft

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, 7:00 PM MST	444	2.3
Nov 5, 6:00 PM MST	430	2.28
Nov 5, 5:00 PM MST	423	2.27
Nov 5, 4:00 PM MST	437	2.29
Nov 5, 3:00 PM MST	437	2.29
Nov 5, 2:00 PM MST	437	2.29
Nov 5, 1:00 PM MST	444	2.3
Nov 5, 12:00 PM MST	430	2.28
Nov 5, 11:00 AM MST	437	2.29
Nov 5, 10:00 AM MST	450	2.31
Nov 5, 9:00 AM MST	444	2.3
Nov 5, 8:00 AM MST	444	2.3
Nov 5, 7:00 AM MST	437	2.29
Nov 5, 6:00 AM MST	444	2.3
Nov 5, 5:00 AM MST	444	2.3
Nov 5, 4:00 AM MST	437	2.29
Nov 5, 3:00 AM MST	444	2.3
Nov 5, 2:00 AM MST	444	2.3
Nov 5, 1:00 AM MST	450	2.31
Nov 5, 12:00 AM MST	444	2.3
Nov 4, 11:00 PM MST	444	2.3
Nov 4, 10:00 PM MST	437	2.29
Nov 4, 9:00 PM MST	444	2.3
Nov 4, 8:00 PM MST	444	2.3
Nov 4, 7:00 PM MST	437	2.29
Nov 4, 6:00 PM MST	437	2.29
Nov 4, 5:00 PM MST	437	2.29

Whitefish River near Kalispell MT

USGS 12366000

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

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

Discharge: 56.9 ft³/s
Gauge height: 1.45 ft

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, 7:45 PM MST	56.9	1.45
Nov 5, 6:45 PM MST	56.9	1.45
Nov 5, 5:45 PM MST	56.9	1.45
Nov 5, 4:45 PM MST	56.9	1.45
Nov 5, 3:45 PM MST	56.9	1.45
Nov 5, 2:45 PM MST	56.9	1.45
Nov 5, 1:45 PM MST	56.9	1.45
Nov 5, 12:45 PM MST	56.9	1.45
Nov 5, 11:45 AM MST	56.9	1.45
Nov 5, 10:45 AM MST	56.9	1.45
Nov 5, 9:45 AM MST	56.9	1.45
Nov 5, 8:45 AM MST	56.9	1.45
Nov 5, 7:45 AM MST	56.9	1.45
Nov 5, 6:45 AM MST	56.9	1.45
Nov 5, 5:45 AM MST	56.9	1.45
Nov 5, 4:45 AM MST	56.9	1.45
Nov 5, 3:45 AM MST	56.9	1.45
Nov 5, 2:45 AM MST	56.9	1.45
Nov 5, 1:45 AM MST	56.9	1.45
Nov 5, 12:45 AM MST	56.9	1.45
Nov 4, 11:45 PM MST	56.9	1.45
Nov 4, 10:45 PM MST	56.9	1.45
Nov 4, 9:45 PM MST	56.9	1.45
Nov 4, 8:45 PM MST	56.9	1.45
Nov 4, 7:45 PM MST	56.9	1.45
Nov 4, 6:45 PM MST	56.9	1.45
Nov 4, 5:45 PM MST	56.9	1.45

Checked Nov 6, 3:17 AM UTC; 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.

Flathead River at Foys Bend nr Kalispell MT
USGS 12366500 · MT · no flow · gauge height · 17.3 mi
Reading the gauge…
Flathead River near Polson MT
USGS 12372000 · MT · live flow · gauge height · water temperature · 18.4 mi
Reading the gauge…
Stillwater River at Lawrence Park, at Kalispell
USGS 12365700 · MT · live flow · gauge height · 20.5 mi
Reading the gauge…
Swan River near Bigfork, MT
USGS 12370000 · MT · live flow · gauge height · 20.7 mi
Reading the gauge…
Whitefish River near Kalispell MT
USGS 12366000 · MT · live flow · gauge height · 27.8 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.

Flathead River near Polson MT

USGS 12372000

Good: Good conditions: fish normally

The full view adds the NWS forecast.

Discharge: 7,390 ft³/s
Gauge height: 5.53 ft
Water temp: 47.5°F

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)	Water temp (°F)
Nov 5, 7:50 PM MST	7,390	5.53	47.5
Nov 5, 6:55 PM MST	7,210	5.45	47.5
Nov 5, 6:00 PM MST	7,210	5.45	47.5
Nov 5, 5:05 PM MST	7,210	5.45	47.5
Nov 5, 4:10 PM MST	7,210	5.45	–
Nov 5, 3:15 PM MST	7,210	5.45	–
Nov 5, 2:20 PM MST	7,210	5.45	–
Nov 5, 1:25 PM MST	7,230	5.46	47.7
Nov 5, 12:30 PM MST	7,210	5.45	47.7
Nov 5, 11:35 AM MST	7,210	5.45	47.7
Nov 5, 10:40 AM MST	7,210	5.45	47.7
Nov 5, 9:45 AM MST	7,210	5.45	47.7
Nov 5, 8:50 AM MST	7,210	5.45	47.7
Nov 5, 7:55 AM MST	7,210	5.45	47.7
Nov 5, 7:00 AM MST	7,210	5.45	47.7
Nov 5, 6:05 AM MST	7,210	5.45	47.7
Nov 5, 5:10 AM MST	7,210	5.45	–
Nov 5, 4:15 AM MST	7,210	5.45	–
Nov 5, 3:20 AM MST	7,210	5.45	–
Nov 5, 2:25 AM MST	7,210	5.45	47.8
Nov 5, 1:30 AM MST	7,210	5.45	47.8
Nov 5, 12:35 AM MST	7,210	5.45	47.8
Nov 4, 11:40 PM MST	7,210	5.45	47.8
Nov 4, 10:45 PM MST	7,210	5.45	47.8
Nov 4, 9:50 PM MST	7,210	5.45	47.8
Nov 4, 8:55 PM MST	7,210	5.45	47.8
Nov 4, 8:00 PM MST	7,210	5.45	48
Nov 4, 7:05 PM MST	7,210	5.45	48
Nov 4, 6:10 PM MST	7,210	5.45	–

Reading Nov 5, 7:50 PM MST · checked 8:17 PM MST

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