What is the current flow on Grand Calumet River?

Grand Calumet River was running 939 cubic feet per second as of Aug 1, 2026, 6:30 PM UTC, measured at USGS gauge 04092677. 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 Grand Calumet River?

72°F (22.2°C) as of Aug 1, 2026, 6:00 PM UTC, at USGS gauge 05536356. Grand Calumet 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.

Grand Calumet River

Indiana. Streamflow and water-temperature readings from USGS gauges. Running 939 cfs as of Aug 1, 2026, 6:30 PM UTC.

Latest Reading

939

cubic feet / second

72°F

water temperature (22.2°C)

USGS gauges

Flow measured Aug 1, 2026, 6:30 PM UTC at gauge 04092677. Temperature measured Aug 1, 2026, 6:00 PM UTC at gauge 05536356. These are build-time snapshots, not a live feed — check the USGS gauge before relying on them.

USGS Gauges on Grand Calumet River

Gauge	Station	Water temp?
04092677	GRAND CALUMET RIVER AT INDUSTRIAL HWY AT GARY, IN	Yes
05536356	GRAND CALUMET RIVER AT COLUMBIA AV AT HAMMOND, IN	Yes

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Conditions: USGS NWIS (public domain).