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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Partly Cloudy

5°F

-15°C

Humidity 72%
Wind Speed S 7 mph
Barometer 30.14 in
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 4 Dec 10:55 pm CST
Extended Forecast for

Harvard ILSimilar City Names

  • Tonight

    Tonight: Increasing clouds, with a temperature rising to around 7 by 5am. Wind chill values as low as -13. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -1 °F⇑

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 26. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 26 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 25. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 25 °F

    Patchy Wintry
    Mix

  • Saturday

    Saturday: Partly sunny, with a high near 24. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 24 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Snow likely, mainly after midnight. Mostly cloudy, with a low around 12. Calm wind becoming north around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.

    Low: 12 °F

    Slight Chance
    Snow then
    Snow Likely

  • Sunday

    Sunday: A 40 percent chance of snow before noon. Partly sunny, with a high near 20.

    High: 20 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 0.

    Low: 0 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow likely. Cloudy, with a low around 12.

    Low: 12 °F

    Snow Likely

Detailed Forecast

Tonight
Increasing clouds, with a temperature rising to around 7 by 5am. Wind chill values as low as -13. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Friday
Partly sunny, with a high near 26. Wind chill values as low as -6. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Friday Night
Patchy snow and freezing rain. Mostly cloudy, with a steady temperature around 25. Southwest wind around 10 mph becoming west northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Saturday
Partly sunny, with a high near 24. West northwest wind 5 to 10 mph becoming light and variable in the afternoon.
Saturday Night
Snow likely, mainly after midnight. Mostly cloudy, with a low around 12. Calm wind becoming north around 5 mph after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 60%.
Sunday
A 40 percent chance of snow before noon. Partly sunny, with a high near 20.
Sunday Night
Mostly cloudy, with a low around 0.
Monday
Partly sunny, with a high near 20.
Monday Night
Snow likely. Cloudy, with a low around 12.
Tuesday
A chance of snow before noon. Mostly cloudy, with a high near 29.
Tuesday Night
Snow likely. Cloudy, with a low around 18.
Wednesday
Snow likely. Mostly cloudy, with a high near 31.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 8.
Thursday
A chance of snow. Partly sunny, with a high near 21.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harvard ILSimilar City Names
 42.42°N 88.61°W
Last Update:
9:16 pm CST Dec 4, 2025
Forecast Valid:
11pm CST Dec 4, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

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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