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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Snow

21°F

-6°C

Humidity 63%
Wind Speed S 10 mph
Barometer 30.12 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 17 Mar 10:55 pm CDT
Extended Forecast for

Janesville WI

  • Tonight

    Tonight: Snow before 3am, then snow, possibly mixed with freezing rain. Low around 18. South wind around 10 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of around an inch possible.

    Low: 18 °F

    Wintry Mix

  • Wednesday

    Wednesday: A chance of snow and freezing rain before 7am. Mostly cloudy, with a high near 40. South wind 10 to 15 mph. Chance of precipitation is 30%.

    High: 40 °F

    Chance Wintry
    Mix then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 33. South wind around 5 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Partly sunny, with a high near 46. Southeast wind around 5 mph becoming north in the afternoon.

    High: 46 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 34. North wind around 5 mph becoming calm in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 55. Southwest wind 5 to 10 mph.

    High: 55 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37. Northwest wind around 5 mph becoming southeast after midnight.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 66. South wind 5 to 10 mph.

    High: 66 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Snow before 3am, then snow, possibly mixed with freezing rain. Low around 18. South wind around 10 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Total nighttime snow accumulation of around an inch possible.
Wednesday
A chance of snow and freezing rain before 7am. Mostly cloudy, with a high near 40. South wind 10 to 15 mph. Chance of precipitation is 30%.
Wednesday Night
A 50 percent chance of rain after midnight. Mostly cloudy, with a low around 33. South wind around 5 mph.
Thursday
Partly sunny, with a high near 46. Southeast wind around 5 mph becoming north in the afternoon.
Thursday Night
Mostly cloudy, with a low around 34. North wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, with a high near 55. Southwest wind 5 to 10 mph.
Friday Night
Mostly cloudy, with a low around 37. Northwest wind around 5 mph becoming southeast after midnight.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 66. South wind 5 to 10 mph.
Saturday Night
A 20 percent chance of rain after 1am. Mostly cloudy, with a low around 42.
Sunday
Partly sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Partly sunny, with a high near 43.
Monday Night
Mostly cloudy, with a low around 27.
Tuesday
Partly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.67°N 89.04°W (Elev. 774 ft)
Last Update:
9:47 pm CDT Mar 17, 2026
Forecast Valid:
11pm CDT Mar 17, 2026-6pm CDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation