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.

Fair

81°F

27°C

Humidity 62%
Wind Speed SW 5 mph
Barometer 30.04 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Jul 7:45 pm CDT
Extended Forecast for

3 Miles NNE Janesville WI

  • Tonight

    Tonight: Clear, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 69. South wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 40%.

    High: 86 °F

    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming northwest in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 57. Northeast wind 5 to 10 mph.

    Low: 57 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 76. Northeast wind around 5 mph.

    High: 76 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Clear, with a low around 63. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 87. Light south wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
Mostly clear, with a low around 69. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 86. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 40%.
Wednesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. West wind around 5 mph becoming northwest in the evening. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 57. Northeast wind 5 to 10 mph.
Friday
Mostly sunny, with a high near 76. Northeast wind around 5 mph.
Friday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 60.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Janesville WI
 42.71°N 89°W (Elev. 892 ft)
Last Update:
5:54 pm CDT Jul 14, 2025
Forecast Valid:
8pm CDT Jul 14, 2025-6pm CDT Jul 21, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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