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Elev 515 ft, 41.26 °N, 89.34 °W

Hennepin, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: Hennepin, IL
Elevation: 515ft
Nearby Weather Stations

Active Weather Alerts

River Flood Warning
Issued: 4:45 PM Apr. 5, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL FRIDAY AFTERNOON...

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

* WHERE...Illinois River from Starved Rock Lock and Dam downstream
to confluence with Big Bureau Creek, including the La Salle gauge.

* WHEN...Until Friday afternoon.

* IMPACTS...At 22.0 feet, Lower parking lot at Starved Rock State
Park is inundated east of La Salle. High water levels begin to
impact shipping interests along the river.

* ADDITIONAL DETAILS...
- At 10:45 AM CDT Sunday the stage was 23.4 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 10:45 AM CDT Sunday was 23.4 feet.
- Forecast...The river is expected to rise to a crest of 23.6
feet this evening. It will then fall below flood stage late
Friday morning.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

&&



River Flood Warning
Issued: 4:43 PM Apr. 5, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT FROM TUESDAY AFTERNOON TO EARLY
FRIDAY MORNING...

* WHAT...Minor flooding is forecast.

* WHERE...Illinois River at Henry.

* WHEN...From Tuesday afternoon to early Friday morning.

* IMPACTS...At 23.0 feet, Water begins to affect the marina in Henry
along with minor flooding of land adjacent to the river.

* ADDITIONAL DETAILS...
- At 10:45 AM CDT Sunday the stage was 20.5 feet.
- Forecast...The river is expected to rise above flood stage
early Tuesday afternoon to a crest of 23.2 feet early
Wednesday morning. It will then fall below flood stage
Thursday evening.
- Flood stage is 23.0 feet.
- http://www.weather.gov/safety/flood

&&

Fld   Observed           Forecasts (1 pm CDT)
Location      Stg   Stg   Day/Time     Mon   Tue   Wed

Illinois River
Henry         23.0  20.5  Sun 10 am CD 22.0  23.0  23.2


&&



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