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.

Mostly Cloudy

21°F

-6°C

Humidity 68%
Wind Speed SW 12 mph
Barometer 30.27 in
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill9°F (-13°C)
Last update 8 Dec 1:45 pm CST
Extended Forecast for

5 Miles SSW Janesville WI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 22. South wind around 10 mph.

    High: 22 °F

    Mostly Cloudy

  • Tonight

    Tonight: A chance of snow and freezing rain before 4am, then a slight chance of freezing rain. Cloudy, with a temperature rising to around 24 by 4am. South wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    Low: 17 °F⇑

    Chance Snow
    then Chance
    Wintry Mix

  • Tuesday

    Tuesday: A slight chance of freezing rain before 7am, then a chance of freezing rain after 3pm. Cloudy, with a high near 33. West wind 10 to 15 mph. Chance of precipitation is 40%.

    High: 33 °F

    Chance
    Freezing Rain

  • Tuesday Night

    Tuesday Night: Rain, snow, and freezing rain before 1am, then rain likely, possibly mixed with snow between 1am and 3am, then a chance of snow after 3am. Low around 27. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Wintry Mix
    then
    Rain/Snow
    Likely and
    Breezy

  • Wednesday

    Wednesday: Snow likely, mainly before noon. Mostly cloudy, with a high near 31. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Blustery.
    Snow Likely
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. Northwest wind 5 to 15 mph.

    Low: 8 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow showers after noon. Partly sunny, with a high near 20. Northwest wind 5 to 10 mph.

    High: 20 °F

    Partly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 4. Northwest wind around 5 mph.

    Low: 4 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 40 percent chance of snow showers. Mostly cloudy, with a high near 18.

    High: 18 °F

    Chance Snow
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 22. South wind around 10 mph.
Tonight
A chance of snow and freezing rain before 4am, then a slight chance of freezing rain. Cloudy, with a temperature rising to around 24 by 4am. South wind 10 to 15 mph becoming southwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Tuesday
A slight chance of freezing rain before 7am, then a chance of freezing rain after 3pm. Cloudy, with a high near 33. West wind 10 to 15 mph. Chance of precipitation is 40%.
Tuesday Night
Rain, snow, and freezing rain before 1am, then rain likely, possibly mixed with snow between 1am and 3am, then a chance of snow after 3am. Low around 27. Breezy, with a south wind 15 to 20 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New ice accumulation of less than a 0.1 of an inch possible. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly before noon. Mostly cloudy, with a high near 31. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Wednesday Night
A 20 percent chance of snow showers before midnight. Mostly cloudy, with a low around 8. Northwest wind 5 to 15 mph.
Thursday
A 20 percent chance of snow showers after noon. Partly sunny, with a high near 20. Northwest wind 5 to 10 mph.
Thursday Night
A 40 percent chance of snow showers, mainly after midnight. Mostly cloudy, with a low around 4. Northwest wind around 5 mph.
Friday
A 40 percent chance of snow showers. Mostly cloudy, with a high near 18.
Friday Night
Mostly cloudy, with a low around -5.
Saturday
Partly sunny and cold, with a high near 5.
Saturday Night
A 20 percent chance of snow showers. Mostly cloudy, with a low around -7.
Sunday
Mostly sunny and cold, with a high near 10.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
Last Update:
2:12 pm CST Dec 8, 2025
Forecast Valid:
2pm CST Dec 8, 2025-6pm CST Dec 14, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation