What is the current flow on Ohio River?

Ohio River was running 133,000 cubic feet per second as of Aug 1, 2026, 6:00 PM UTC, measured at USGS gauge 03612600. 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 Ohio River?

83.7°F (28.7°C) as of Aug 1, 2026, 6:00 PM UTC, at USGS gauge 03612600. Ohio 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.

Ohio River

Illinois. Streamflow and water-temperature readings from USGS gauges. Running 133,000 cfs as of Aug 1, 2026, 6:00 PM UTC.

Latest Reading

133,000

cubic feet / second

83.7°F

water temperature (28.7°C)

USGS gauges

Flow measured Aug 1, 2026, 6:00 PM UTC at gauge 03612600. Temperature measured Aug 1, 2026, 6:00 PM UTC at gauge 03612600. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Ohio River

Gauge	Station	Water temp?
03399800	OHIO RIVER AT SMITHLAND DAM, SMITHLAND, KY	—
03612600	OHIO RIVER AT OLMSTED, IL	Yes

Fly fishing rivers →Illinois lakes →

Conditions: USGS NWIS (public domain).