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

36°F

2°C

Humidity 75%
Wind Speed NW 18 G 25 mph
Barometer 29.89 in
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 6 Feb 11:45 am CST
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a temperature falling to around 29 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 37 °F⇓

    Mostly Cloudy
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 4. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.

    Low: 4 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 21. Wind chill values between zero and 10. North wind around 5 mph becoming calm.

    High: 21 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 16. Southeast wind 5 to 10 mph.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 30. Southeast wind 5 to 10 mph.

    High: 30 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20. Southeast wind around 5 mph becoming south after midnight.

    Low: 20 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 40. Southwest wind 5 to 10 mph.

    High: 40 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 30. South wind around 5 mph.

    Low: 30 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Increasing clouds, with a high near 43.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance Rain

Detailed Forecast

This Afternoon
Mostly cloudy, with a temperature falling to around 29 by 5pm. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 4. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 30 mph.
Saturday
Increasing clouds, with a high near 21. Wind chill values between zero and 10. North wind around 5 mph becoming calm.
Saturday Night
Mostly cloudy, with a low around 16. Southeast wind 5 to 10 mph.
Sunday
Partly sunny, with a high near 30. Southeast wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 20. Southeast wind around 5 mph becoming south after midnight.
Monday
Partly sunny, with a high near 40. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 30. South wind around 5 mph.
Tuesday
A 20 percent chance of rain after noon. Increasing clouds, with a high near 43.
Tuesday Night
A chance of rain before midnight, then a chance of snow. Cloudy, with a low around 28. Chance of precipitation is 30%.
Wednesday
A 20 percent chance of snow. Mostly cloudy, with a high near 35.
Wednesday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 22.
Thursday
A 20 percent chance of snow. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
10:31 am CST Feb 6, 2026
Forecast Valid:
12pm CST Feb 6, 2026-6pm CST Feb 12, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation