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Elev 879 ft, 42.28 °N, 88.32 °W

Crystal Lake, IL Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Crystal Lake, IL
Elevation: 879ft
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Active Weather Alerts

River Flood Warning
Issued: 2:24 AM Apr. 12, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL TUESDAY EVENING...

* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
St. Charles, including the Algonquin Lock & Dam tailwater gauge.

* WHEN...Until Tuesday evening.

* IMPACTS...At 10.0 feet, Winaki Trail and Onaway Trail are
threatened south of Algonquin. Athletic fields inundated at Judson
College in Elgin.

* ADDITIONAL DETAILS...
- At 8:30 PM CDT Saturday the stage was 9.8 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:30 PM CDT Saturday was 9.9 feet.
- Forecast...The river is expected to fall below flood stage
early Tuesday afternoon.
- Flood stage is 9.5 feet.
- http://www.weather.gov/safety/flood

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