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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy and Breezy

41°F

5°C

Humidity 61%
Wind Speed E 21 G 30 mph
Barometer 30.23 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 1 Apr 11:45 am CDT
Extended Forecast for

South Beloit IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 41. East northeast wind around 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Partly Sunny

  • Tonight

    Tonight: Scattered showers, then showers and possibly a thunderstorm after 10pm. Low around 36. East wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Showers
    Likely then
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 67. Breezy, with an east wind 15 to 20 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 67 °F

    Showers then
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 10pm. Low around 42. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%.

    Low: 42 °F

    Breezy.
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Scattered showers and thunderstorms after 1pm. Partly sunny, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 30%.

    High: 60 °F

    Partly Sunny
    then
    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 90%.

    Low: 44 °F

    Showers

  • Saturday

    Saturday: Scattered showers and thunderstorms before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.

    High: 52 °F

    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 32. Breezy.

    Low: 32 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 41. East northeast wind around 15 mph, with gusts as high as 25 mph.
Tonight
Scattered showers, then showers and possibly a thunderstorm after 10pm. Low around 36. East wind around 15 mph, with gusts as high as 35 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms after 1pm. High near 67. Breezy, with an east wind 15 to 20 mph becoming south southwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Showers and thunderstorms before 10pm. Low around 42. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%.
Friday
Scattered showers and thunderstorms after 1pm. Partly sunny, with a high near 60. West wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 30%.
Friday Night
Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 90%.
Saturday
Scattered showers and thunderstorms before 1pm. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 32. Breezy.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Mostly clear, with a low around 32.
Monday
Partly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Beloit IL
 42.5°N 89.05°W
Last Update:
1:35 pm CDT Apr 1, 2026
Forecast Valid:
2pm CDT Apr 1, 2026-6pm CDT Apr 7, 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