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

18°F

-8°C

Humidity 100%
Wind Speed SW 9 mph
Barometer 30.02 in
Dewpoint 18°F (-8°C)
Visibility 7.00 mi
Wind Chill7°F (-14°C)
Last update 2 Dec 10:45 am CST
Extended Forecast for

3 Miles S Walworth WI

  • Today

    Today: Mostly cloudy, with a high near 22. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 22 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy, with a temperature rising to around 23 by 5am. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 17 °F⇑

    Cloudy

  • Wednesday

    Wednesday: Snow likely. Cloudy, with a high near 30. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 30 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around -4. Wind chill values as low as -15. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: -4 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 9. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 9 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -2.

    Low: -2 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Partly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: A chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 24.

    High: 24 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 22. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tonight
Cloudy, with a temperature rising to around 23 by 5am. South southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday
Snow likely. Cloudy, with a high near 30. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Partly cloudy, with a low around -4. Wind chill values as low as -15. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny and cold, with a high near 9. Northwest wind around 5 mph becoming southwest in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Partly cloudy, with a low around -2.
Friday
A 20 percent chance of snow after noon. Partly sunny, with a high near 21.
Friday Night
A chance of snow before midnight. Mostly cloudy, with a low around 12.
Saturday
Mostly cloudy, with a high near 24.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 9.
Sunday
A chance of snow. Partly sunny, with a high near 20.
Sunday Night
Mostly cloudy, with a low around 5.
Monday
Mostly cloudy, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Walworth WI
 42.5°N 88.6°W
Last Update:
9:31 am CST Dec 2, 2025
Forecast Valid:
10am CST Dec 2, 2025-6pm CST Dec 8, 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