What is the current flow on Castor River?

Castor River was running 176 cubic feet per second as of Aug 1, 2026, 5:45 PM UTC, measured at USGS gauge 07021000. This is a build-time snapshot rather than a live reading — check the USGS gauge directly before relying on it.

Castor River

Missouri. Streamflow and water-temperature readings from USGS gauges. Running 176 cfs as of Aug 1, 2026, 5:45 PM UTC.

Latest Reading

176

cubic feet / second

USGS gauge

Flow measured Aug 1, 2026, 5:45 PM UTC at gauge 07021000. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Castor River

Gauge	Station	Water temp?
07021000	Castor River at Zalma, MO	—

Fly fishing rivers →Missouri lakes →

Conditions: USGS NWIS (public domain).