National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Rochelle, Rochelle Municipal-Koritz Field Airport (KRPJ)

Lat: 41.89°NLon: 89.08°WElev: 768ft.

Mostly Cloudy

80°F

27°C

Humidity 65%
Wind Speed W 17 G 23 mph
Barometer 29.78 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 16 Jul 6:35 pm CDT
Extended Forecast for

Rock Falls IL

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 74. Northwest wind 5 to 10 mph.

    High: 74 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 58. East wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81. East wind around 5 mph becoming southeast in the afternoon.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.

    Low: 67 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 85 °F

    T-storms
    Likely then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 82.

    High: 82 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Partly cloudy, with a low around 64. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
Mostly cloudy, with a high near 74. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 58. East wind around 5 mph.
Friday
Mostly sunny, with a high near 81. East wind around 5 mph becoming southeast in the afternoon.
Friday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
Saturday
Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 82.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 64.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 93.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rock Falls IL
 41.77°N 89.7°W (Elev. 643 ft)
Last Update:
6:17 pm CDT Jul 16, 2025
Forecast Valid:
6pm CDT Jul 16, 2025-6pm CDT Jul 23, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation