What is the current flow on Rex River?

Rex River was running 6 cubic feet per second as of Aug 1, 2026, 6:15 PM UTC, measured at USGS gauge 12115500. 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 Rex River?

54.5°F (12.5°C) as of Aug 1, 2026, 6:15 PM UTC, at USGS gauge 12115500. Rex 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.

Rex River

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

Latest Reading

cubic feet / second

54.5°F

water temperature (12.5°C)

USGS gauge

Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 12115500. Temperature measured Aug 1, 2026, 6:15 PM UTC at gauge 12115500. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Rex River

Gauge	Station	Water temp?
12115500	REX RIVER NEAR CEDAR FALLS, WA	Yes

Fly fishing rivers →Washington trout water →Washington lakes →

Conditions: USGS NWIS (public domain).