What is the current flow on South Fork Sultan River?

South Fork Sultan River was running 10 cubic feet per second as of Aug 1, 2026, 6:00 PM UTC, measured at USGS gauge 12137290. 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 South Fork Sultan River?

54.9°F (12.7°C) as of Aug 1, 2026, 6:00 PM UTC, at USGS gauge 12137290. South Fork Sultan 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.

South Fork Sultan River

Washington. Streamflow and water-temperature readings from USGS gauges. Running 10 cfs as of Aug 1, 2026, 6:00 PM UTC.

Latest Reading

cubic feet / second

54.9°F

water temperature (12.7°C)

USGS gauge

Flow measured Aug 1, 2026, 6:00 PM UTC at gauge 12137290. Temperature measured Aug 1, 2026, 6:00 PM UTC at gauge 12137290. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on South Fork Sultan River

Gauge	Station	Water temp?
12137290	SOUTH FORK SULTAN RIVER NEAR SULTAN, WA	Yes

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Conditions: USGS NWIS (public domain).