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

61°F

16°C

Humidity 34%
Wind Speed NW 9 mph
Barometer 30.15 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 9 Apr 6:45 pm CDT
Extended Forecast for

4 Miles WNW Beloit WI

  • Tonight

    Tonight: Showers and possibly a thunderstorm. Low around 42. West wind 5 to 10 mph becoming east in the evening. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 42 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers
    Likely then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. North wind around 5 mph becoming southeast after midnight.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 57. Southeast wind 5 to 10 mph.

    High: 57 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Southeast wind 10 to 15 mph. Chance of precipitation is 50%.

    Low: 49 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    Showers and
    Windy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 60 °F

    Chance
    Showers and
    Breezy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Southwest wind around 15 mph.

    High: 77 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

    Low: 62 °F

    Showers
    Likely

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Low around 42. West wind 5 to 10 mph becoming east in the evening. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
Showers likely, mainly before 8am. Cloudy, then gradually becoming mostly sunny, with a high near 52. Northwest wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly clear, with a low around 36. North wind around 5 mph becoming southeast after midnight.
Saturday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 57. Southeast wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49. Southeast wind 10 to 15 mph. Chance of precipitation is 50%.
Sunday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 71. Windy, with a southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 60. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Monday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 77. Southwest wind around 15 mph.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 55. Chance of precipitation is 80%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Beloit WI
 42.54°N 89.1°W (Elev. 889 ft)
Last Update:
6:37 pm CDT Apr 9, 2026
Forecast Valid:
6pm CDT Apr 9, 2026-6pm CDT Apr 16, 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