What is the current flow on St Clair River?

St Clair River was running 217,000 cubic feet per second as of Aug 1, 2026, 6:00 PM UTC, measured at USGS gauge 04159130. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

St Clair River

Michigan. Streamflow and water-temperature readings from USGS gauges. Running 217,000 cfs as of Aug 1, 2026, 6:00 PM UTC.

Latest Reading

217,000

cubic feet / second

USGS gauge

Flow measured Aug 1, 2026, 6:00 PM UTC at gauge 04159130. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on St Clair River

Gauge	Station	Water temp?
04159130	ST. CLAIR RIVER AT PORT HURON, MI	—

Fly fishing rivers →Michigan lakes →

Conditions: USGS NWIS (public domain).