What is the current flow on Blackfoot River?

Blackfoot River was running 900 cubic feet per second as of Aug 1, 2026, 5:30 PM UTC, measured at USGS gauge 12340000. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

What is the water temperature on Blackfoot River?

66.2°F (19°C) as of Aug 1, 2026, 5:30 PM UTC, at USGS gauge 12340000. Blackfoot River carries no state trout classification, so the trout-stress thresholds do not apply to it — this is a water temperature measurement, not a fishery judgement.

Blackfoot River

Montana. Streamflow and water-temperature readings from USGS gauges. Running 900 cfs as of Aug 1, 2026, 5:30 PM UTC.

Latest Reading

900

cubic feet / second

66.2°F

water temperature (19°C)

USGS gauges

Flow measured Aug 1, 2026, 5:30 PM UTC at gauge 12340000. Temperature measured Aug 1, 2026, 5:30 PM UTC at gauge 12340000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Blackfoot River

Gauge	Station	Water temp?
12335100	Blackfoot R ab Nevada Cr nr Helmville MT	—
12340000	Blackfoot River near Bonner MT	Yes

Fly fishing rivers →Montana trout water →Montana lakes →

Conditions: USGS NWIS (public domain).