What is the current flow on Lamar River?

Lamar River was running 292 cubic feet per second as of Aug 1, 2026, 6:15 PM UTC, measured at USGS gauge 06188000. 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 Lamar River?

64.6°F (18.1°C) as of Aug 1, 2026, 6:15 PM UTC, at USGS gauge 06188000. Lamar 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.

Lamar River

Wyoming. Streamflow and water-temperature readings from USGS gauges. Running 292 cfs as of Aug 1, 2026, 6:15 PM UTC.

Latest Reading

292

cubic feet / second

64.6°F

water temperature (18.1°C)

USGS gauge

Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 06188000. Temperature measured Aug 1, 2026, 6:15 PM UTC at gauge 06188000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Lamar River

Gauge	Station	Water temp?
06188000	Lamar River nr Tower Ranger Station YNP	Yes

Fly fishing rivers →Wyoming lakes →

Conditions: USGS NWIS (public domain).