What is the current flow on Big Hole River?

Big Hole River was running 502 cubic feet per second as of Aug 1, 2026, 6:15 PM UTC, measured at USGS gauge 06025500. 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 Big Hole River?

72.5°F (22.5°C) as of Aug 1, 2026, 6:30 PM UTC, at USGS gauge 06026420. Big Hole 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.

Big Hole River

Montana. Streamflow and water-temperature readings from USGS gauges. Running 502 cfs as of Aug 1, 2026, 6:15 PM UTC.

Latest Reading

502

cubic feet / second

72.5°F

water temperature (22.5°C)

USGS gauges

Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 06025500. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 06026420. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Big Hole River

Gauge	Station	Water temp?
06024450	Big Hole River bl Big Lake Cr at Wisdom MT	Yes
06024540	Big Hole River bl Mudd Cr nr Wisdom MT	Yes
06024580	Big Hole River near Wise River MT	Yes
06025250	Big Hole River at Maiden Rock nr Divide MT	Yes
06025500	Big Hole River near Melrose MT	Yes
06026210	Big Hole River near Glen MT	Yes
06026420	Big Hole R bl Hamilton Ditch nr Twin Bridges, MT	Yes

Fly fishing rivers →Montana trout water →Montana lakes →

Conditions: USGS NWIS (public domain).