What is the current flow on Long Run?

Long Run was running 204 cubic feet per second as of Aug 1, 2026, 6:00 PM UTC, measured at USGS gauge 05537500. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Long Run

Illinois. Streamflow and water-temperature readings from USGS gauges. Running 204 cfs as of Aug 1, 2026, 6:00 PM UTC.

Latest Reading

204

cubic feet / second

USGS gauge

Flow measured Aug 1, 2026, 6:00 PM UTC at gauge 05537500. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Long Run

Gauge	Station	Water temp?
05537500	LONG RUN NEAR LEMONT, IL	—

Fly fishing rivers →Illinois lakes →

Conditions: USGS NWIS (public domain).