National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Snow Fog/Mist

27°F

-3°C

Humidity 93%
Wind Speed Calm
Barometer 30.18 in
Dewpoint 25°F (-4°C)
Visibility 1.00 mi
Last update 1 Dec 2:45 pm CST
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Snow. High near 28. South wind around 5 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.

    High: 28 °F

    Snow

  • Tonight

    Tonight: Snow, mainly before 10pm. Low around 10. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    Low: 10 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 24. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 24 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of snow after midnight. Cloudy, with a low around 16. Southwest wind around 10 mph.

    Low: 16 °F

    Cloudy then
    Slight Chance
    Snow

  • Wednesday

    Wednesday: Snow likely. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Snow Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Northwest wind 5 to 15 mph.

    Low: -5 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny and cold, with a high near 10. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 10 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -6. South wind 5 to 10 mph.

    Low: -6 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Snow. High near 28. South wind around 5 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
Snow, mainly before 10pm. Low around 10. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Tuesday
Partly sunny, with a high near 24. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Tuesday Night
A 20 percent chance of snow after midnight. Cloudy, with a low around 16. Southwest wind around 10 mph.
Wednesday
Snow likely. Cloudy, with a high near 31. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -5. Northwest wind 5 to 15 mph.
Thursday
Sunny and cold, with a high near 10. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around -6. South wind 5 to 10 mph.
Friday
Partly sunny, with a high near 23.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a steady temperature around 19.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 26.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 9.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 0.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 22.
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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:
3:12 pm CST Dec 1, 2025
Forecast Valid:
3pm CST Dec 1, 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