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

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

75°F

24°C

Humidity 94%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 15 Aug 8:45 pm CDT
Extended Forecast for

Caledonia IL

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 72. South southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 50%.

    Low: 72 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, with a high near 82. West wind 5 to 15 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61. North northwest wind 5 to 10 mph.

    Low: 61 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm. Mostly cloudy, with a high near 76.

    High: 76 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 72. South southeast wind around 5 mph becoming west after midnight. Chance of precipitation is 50%.
Sunday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 8am. Mostly cloudy, with a high near 82. West wind 5 to 15 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 61. North northwest wind 5 to 10 mph.
Monday
Sunny, with a high near 79. Calm wind becoming northwest around 5 mph in the afternoon. Winds could gust as high as 10 mph.
Monday Night
Partly cloudy, with a low around 60. Calm wind becoming southwest around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Tuesday Night
Showers and possibly a thunderstorm. Low around 62. Chance of precipitation is 80%.
Wednesday
A chance of showers before 1pm. Mostly cloudy, with a high near 76.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Caledonia IL
 42.4°N 88.9°W
Last Update:
9:01 pm CDT Aug 15, 2026
Forecast Valid:
9pm CDT Aug 15, 2026-6pm CDT Aug 22, 2026
 
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