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Elev 699 ft, 41.18 °N, 89.21 °W

McNabb, IL Severe Weather Alertstar_ratehome

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Current Station
Personal Weather Station
Location: McNabb, IL
Elevation: 699ft
Nearby Weather Stations

Active Weather Alerts

River Flood Warning
Issued: 11:40 PM Jun. 20, 2026 – National Weather Service
...FLOOD WARNING NOW IN EFFECT UNTIL THURSDAY MORNING...

* 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 Thursday morning.

* 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 5:45 PM CDT Saturday the stage was 21.3 feet.
- Forecast...The river crested near 22 feet last night, though
is expected to remain above flood stage for several more days
while only gradually falling.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

&&



River Flood Warning
Issued: 3:35 PM Jun. 20, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL MONDAY MORNING...

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

* WHERE...Illinois River at Henry.

* WHEN...Until Monday 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 9:45 AM CDT Saturday the stage was 23.1 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 9:45 AM CDT Saturday was 23.1 feet.
- Forecast...The river is expected to crest at 23.1 feet this
afternoon. It will then fall below flood stage early Monday
morning.
- Flood stage is 23.0 feet.
- http://www.weather.gov/safety/flood

&&

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

Illinois River
Henry         23.0  23.1  Sat 9 am CDT 23.0  22.8  22.4


&&



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