What is the current flow on Fox River?

Fox River was running 3,250 cubic feet per second as of Aug 1, 2026, 5:45 PM UTC, measured at USGS gauge 05551580. 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 Fox River?

32°F (0°C) as of Aug 1, 2026, 6:30 PM UTC, at USGS gauge 05550001. Fox 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.

Fox River

Illinois. Streamflow and water-temperature readings from USGS gauges. Running 3,250 cfs as of Aug 1, 2026, 5:45 PM UTC.

Latest Reading

3,250

cubic feet / second

32°F

water temperature (0°C)

USGS gauges

Flow measured Aug 1, 2026, 5:45 PM UTC at gauge 05551580. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 05550001. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Fox River

Gauge	Station	Water temp?
05548500	FOX RIVER AT JOHNSBURG, IL	—
05550000	FOX RIVER AT ALGONQUIN, IL	—
05550001	FOX RIVER (TAILWATER) AT ALGONQUIN, IL	Yes
05551000	FOX RIVER AT SOUTH ELGIN, IL	—
05551540	FOX RIVER AT MONTGOMERY, IL	—
05551580	FOX RIVER AT YORKVILLE, IL	—
05552500	FOX RIVER AT DAYTON, IL	—

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Conditions: USGS NWIS (public domain).