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Elev 489 ft, 41.35 °N, 88.84 °W

Ottawa, IL Severe Weather Alertstar_ratehome

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Personal Weather Station
Location: Ottawa, IL
Elevation: 489ft
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River Flood Warning
Issued: 2:29 AM Jun. 23, 2026 – National Weather Service
...FLOOD WARNING REMAINS IN EFFECT UNTIL FURTHER NOTICE...

* 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 further notice.

* 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 8:45 PM CDT Monday the stage was 22.9 feet.
- Forecast...The river is expected to rise to a crest of 23.4
feet early Tuesday afternoon. It will gradually fall through
this weekend, and possibly fall below flood stage by early
next week.
- Flood stage is 20.0 feet.
- http://www.weather.gov/safety/flood

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