What is the current flow on Mississippi River?

Mississippi River was running 44,800 cubic feet per second as of Aug 1, 2026, 6:30 PM UTC, measured at USGS gauge 05420500. 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 Mississippi River?

77.7°F (25.4°C) as of Aug 1, 2026, 6:30 PM UTC, at USGS gauge 05420500. Mississippi 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.

Mississippi River

Iowa. Streamflow and water-temperature readings from USGS gauges. Running 44,800 cfs as of Aug 1, 2026, 6:30 PM UTC.

Latest Reading

44,800

cubic feet / second

77.7°F

water temperature (25.4°C)

USGS gauges

Flow measured Aug 1, 2026, 6:30 PM UTC at gauge 05420500. Temperature measured Aug 1, 2026, 6:30 PM UTC at gauge 05420500. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Mississippi River

Gauge	Station	Water temp?
05389500	Mississippi River at McGregor, IA	—
05420500	Mississippi River at Clinton, IA	Yes

Fly fishing rivers →Iowa lakes →

Conditions: USGS NWIS (public domain).