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 93%
Wind Speed SW 10 mph
Barometer 29.25 in
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 9 Dec 11:55 pm CST
Extended Forecast for

3 Miles S Walworth WI

  • Overnight

    Overnight: A chance of rain before 3am, then a chance of rain and snow between 3am and 4am, then snow likely after 4am. Cloudy, with a low around 28. Breezy, with a southwest wind around 20 mph becoming west northwest. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday

    Wednesday: Snow, mainly before 9am. Temperature falling to around 23 by 5pm. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 31 °F⇓

    Blustery.
    Snow then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -3. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 5 °F

    Gradual
    Clearing

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 19. Wind chill values as low as -3. West northwest wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 10 mph.

    High: 19 °F

    Mostly Sunny
    then Slight
    Chance Snow

  • Thursday Night

    Thursday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 14. Calm wind becoming east around 5 mph.

    Low: 14 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 24.

    High: 24 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 2.

    Low: 2 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow. Mostly cloudy and cold, with a high near 9.

    High: 9 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around -9.

    Low: -9 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain before 3am, then a chance of rain and snow between 3am and 4am, then snow likely after 4am. Cloudy, with a low around 28. Breezy, with a southwest wind around 20 mph becoming west northwest. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly before 9am. Temperature falling to around 23 by 5pm. Blustery, with a north northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Wednesday Night
Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -3. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 19. Wind chill values as low as -3. West northwest wind around 5 mph becoming south southwest in the afternoon. Winds could gust as high as 10 mph.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 14. Calm wind becoming east around 5 mph.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 24.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 2.
Saturday
A chance of snow. Mostly cloudy and cold, with a high near 9.
Saturday Night
Partly cloudy, with a low around -9.
Sunday
Sunny and cold, with a high near 5.
Sunday Night
Partly cloudy, with a low around -6.
Monday
Mostly cloudy, with a high near 18.
Monday Night
Mostly cloudy, with a low around 6.
Tuesday
Partly sunny, 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:
12:01 am CST Dec 10, 2025
Forecast Valid:
12am CST Dec 10, 2025-6pm CST Dec 16, 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