What is the current flow on Lost Creek?

Lost Creek was running 7 cubic feet per second as of Aug 1, 2026, 6:30 PM UTC, measured at USGS gauge 12323850. 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 Lost Creek?

68.9°F (20.5°C) as of Aug 1, 2026, 6:30 PM UTC, at USGS gauge 12323850. Lost Creek 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.

Lost Creek

Montana. Streamflow and water-temperature readings from USGS gauges. Running 7 cfs as of Aug 1, 2026, 6:30 PM UTC.

Latest Reading

cubic feet / second

68.9°F

water temperature (20.5°C)

USGS gauges

Flow measured Aug 1, 2026, 6:30 PM UTC at gauge 12323850. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 12323850. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Lost Creek

Gauge	Station	Water temp?
12323840	Lost Creek near Anaconda MT	—
12323850	Lost Creek near Galen, MT	Yes

Fly fishing rivers →Montana trout water →Montana lakes →

Conditions: USGS NWIS (public domain).