National Weather Service

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August 11, 2026: Derecho produces widespread wind damage and tornadoes across northern Illinois and northwest Indiana

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Rochelle, Rochelle Municipal-Koritz Field Airport (KRPJ)

Lat: 41.89° N Lon: 89.08° W Elev: 768 ft.

Fair

58°F

14°C

Humidity	94%
Wind Speed	Calm
Barometer	30.04 in
Dewpoint	57°F (14°C)
Visibility	10.00 mi
Last update	18 Aug 4:15 am CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Lee County

Early This Morning

Partly cloudy late, then becoming mostly cloudy. Temperatures in the lower 60s. Southwest winds around 5 mph.

Today

Mostly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southwest winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon. Chance of precipitation 50 percent.

Tonight

Mostly cloudy. A chance of thunderstorms in the evening. A chance of showers until early morning. A slight chance of thunderstorms after midnight. Lows in the mid 60s. Southwest winds 5 to 10 mph, becoming northwest after midnight. Chance of precipitation 50 percent.

Wednesday

Mostly cloudy in the morning, then clearing. Highs in the upper 70s. North winds around 5 mph.

Wednesday Night

Partly cloudy. Lows in the upper 50s. Northeast winds around 5 mph in the evening, becoming light and variable.

Thursday

Mostly sunny. Highs in the upper 70s. Southeast winds around 5 mph.

Thursday Night

Mostly clear in the evening, then becoming partly cloudy. Lows around 60.

Friday

Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 20 percent.

Friday Night

A chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 60s. Chance of precipitation 40 percent.