What is the current flow on Boulder River?

Boulder River was running 184 cubic feet per second as of Aug 1, 2026, 6:00 PM UTC, measured at USGS gauge 06200000. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Boulder River

Montana. Streamflow and water-temperature readings from USGS gauges. Running 184 cfs as of Aug 1, 2026, 6:00 PM UTC.

Latest Reading

184

cubic feet / second

USGS gauges

Flow measured Aug 1, 2026, 6:00 PM UTC at gauge 06200000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Boulder River

Gauge	Station	Water temp?
06033000	Boulder River near Boulder, MT	—
06200000	Boulder River at Big Timber MT	—

Fly fishing rivers →Montana trout water →Montana lakes →

Conditions: USGS NWIS (public domain).