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

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast with Haze

57°F

14°C

Humidity 88%
Wind Speed NE 6 mph
Barometer 30.06 in
Dewpoint 54°F (12°C)
Visibility 4.00 mi
Last update 14 Jun 5:45 am CDT
Extended Forecast for

Beloit WI

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 80. East wind 5 to 10 mph.

    High: 80 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 82. Southeast wind around 5 mph.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm after midnight.

    Low: 62 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. South wind around 5 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 5 mph.

    Low: 65 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Showers

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 80. East wind 5 to 10 mph.
Tonight
Partly cloudy, with a low around 57. East wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 82. Southeast wind around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. Southeast wind around 5 mph becoming calm after midnight.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 85. South wind around 5 mph. Chance of precipitation is 30%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind around 5 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Southwest wind 5 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 67. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.
Wednesday Night
A 50 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 63.
Juneteenth
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 61.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
Last Update:
5:08 am CDT Jun 14, 2025
Forecast Valid:
5am CDT Jun 14, 2025-6pm CDT Jun 20, 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