What is the current flow on Flag Creek?

Flag Creek was running 656 cubic feet per second as of Aug 1, 2026, 6:15 PM UTC, measured at USGS gauge 05533000. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Flag Creek

Illinois. Streamflow and water-temperature readings from USGS gauges. Running 656 cfs as of Aug 1, 2026, 6:15 PM UTC.

Latest Reading

656

cubic feet / second

USGS gauge

Flow measured Aug 1, 2026, 6:15 PM UTC at gauge 05533000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Flag Creek

Gauge	Station	Water temp?
05533000	FLAG CREEK NEAR WILLOW SPRINGS, IL	—

Fly fishing rivers →Illinois lakes →

Conditions: USGS NWIS (public domain).