Fox River at McHenry (Stratton Lock and Dam) Tailwater, IL

MCHENRY COUNTY, IL42.3092°N, -88.2514°W Updated 9 hr ago

FLOW RATE

2,530cfs

GAUGE HT

3.43ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 1 YEAR

2,530cfs

Optimal band: 633–857 cfs

PERIOD HIGH

2,530cfs

PERIOD LOW

461cfs

RUNNABLE

65%

last 1 year in band

Gauge Height

3.43ft

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42.3092, -88.2514

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DATA · NOAA NWPS · NOAA · NWSUPDATED 2026-09-22 00:00 UTC

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