River gauges›Wisconsin
RIVER GAUGE · ROCK RIVER

Rock River at Jefferson

Jefferson County, Wisconsin

Water level4.11 ft
Flow1,060 cfs
Last readingSep 16, 2026, 5:00 PM UTC (last recorded)
Action8 ft3,840 cfs
Minor flood10 ft5,763 cfs
Moderate flood11 ft7,000 cfs
Major flood13 ft

The past week

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What floods at each level

Highest crests on record

DateLevelFlow
Jun 19, 200815.64 ft—
Apr 1, 197912.84 ft10,300 cfs
Apr 20, 201312.31 ft—

Flood map

See which streets and areas flood at each water level here. Open the flood map ↗

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