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.

Partly Cloudy

73°F

23°C

Humidity 38%
Wind Speed W 10 mph
Barometer 29.84 in
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Jun 5:45 pm CDT
Extended Forecast for

2 Miles NNW Beloit WI

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph.

    Low: 55 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 72. Breezy, with a southwest wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph.

    High: 72 °F

    Chance
    Showers then
    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 5am. Partly cloudy, with a low around 52. West wind 10 to 15 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Partly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 71 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 55. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Partly sunny, with a high near 72. Northwest wind around 15 mph.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51. West wind 5 to 10 mph.

    Low: 51 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Sunny, with a high near 73. Northwest wind 5 to 15 mph.

    High: 73 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 55. Southwest wind 5 to 10 mph.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly between 1pm and 5pm. Mostly sunny, with a high near 72. Breezy, with a southwest wind 10 to 20 mph becoming west in the afternoon. Winds could gust as high as 25 mph.
Tuesday Night
Showers likely, mainly after 5am. Partly cloudy, with a low around 52. West wind 10 to 15 mph becoming light and variable after midnight. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 71. Southeast wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Mostly cloudy, with a low around 55. South wind 10 to 15 mph becoming west after midnight. Chance of precipitation is 50%.
Thursday
Partly sunny, with a high near 72. Northwest wind around 15 mph.
Thursday Night
Mostly clear, with a low around 51. West wind 5 to 10 mph.
Juneteenth
Sunny, with a high near 73. Northwest wind 5 to 15 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 53.
Saturday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 75.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Monday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Beloit WI
 42.56°N 89.04°W (Elev. 748 ft)
Last Update:
5:32 pm CDT Jun 15, 2026
Forecast Valid:
6pm CDT Jun 15, 2026-6pm CDT Jun 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