What is the current flow on Mad River?

Mad River was running 297 cubic feet per second as of Aug 1, 2026, 5:30 PM UTC, measured at USGS gauge 03270000. 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 Mad River?

65.3°F (18.5°C) as of Aug 1, 2026, 5:00 PM UTC, at USGS gauge 03267900. Mad 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.

Mad River

Ohio. Streamflow and water-temperature readings from USGS gauges. Running 297 cfs as of Aug 1, 2026, 5:30 PM UTC.

Latest Reading

297

cubic feet / second

65.3°F

water temperature (18.5°C)

USGS gauges

Flow measured Aug 1, 2026, 5:30 PM UTC at gauge 03270000. Temperature measured Aug 1, 2026, 5:00 PM UTC at gauge 03267900. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Mad River

Gauge	Station	Water temp?
03266560	Mad River at West Liberty OH - 03266560	—
03267000	Mad River near Urbana OH	—
03267900	Mad River at St Paris Pike at Eagle City OH	Yes
03269500	Mad River near Springfield OH	—
03270000	Mad River near Dayton OH	—

Fly fishing rivers →Ohio lakes →

Conditions: USGS NWIS (public domain).