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 Rain

34°F

1°C

Humidity 93%
Wind Speed SE 8 mph
Barometer 29.42 in
Dewpoint 32°F (0°C)
Visibility 3.00 mi
Wind Chill27°F (-3°C)
Last update 9 Dec 7:45 pm CST
Extended Forecast for

2 Miles WSW Darien WI

  • Tonight

    Tonight: Snow, possibly mixed with rain. Low around 28. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: Snow, mainly before 8am. Temperature falling to around 23 by 5pm. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 30 °F⇓

    Blustery.
    Snow then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy during the early evening, then gradual clearing, with a low around 6. Northwest wind 5 to 10 mph.

    Low: 6 °F

    Gradual
    Clearing

  • Thursday

    Thursday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 19. Wind chill values between zero and 10. Northwest wind around 5 mph becoming southwest in the afternoon.

    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 10. South wind around 5 mph becoming calm.

    Low: 10 °F

    Chance Snow

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 24. North wind 5 to 10 mph becoming west in the morning.

    High: 24 °F

    Chance Snow

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 1. West wind around 10 mph.

    Low: 1 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow. Mostly cloudy and cold, with a high near 8. Northwest wind around 10 mph.

    High: 8 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around -10.

    Low: -10 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Tonight
Snow, possibly mixed with rain. Low around 28. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow, mainly before 8am. Temperature falling to around 23 by 5pm. Blustery, with a north wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Cloudy during the early evening, then gradual clearing, with a low around 6. Northwest wind 5 to 10 mph.
Thursday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 19. Wind chill values between zero and 10. Northwest wind around 5 mph becoming southwest in the afternoon.
Thursday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 10. South wind around 5 mph becoming calm.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 24. North wind 5 to 10 mph becoming west in the morning.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 1. West wind around 10 mph.
Saturday
A 50 percent chance of snow. Mostly cloudy and cold, with a high near 8. Northwest wind around 10 mph.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around -10.
Sunday
Sunny and cold, with a high near 5.
Sunday Night
Partly cloudy, with a low around -6.
Monday
A 20 percent chance of snow. Partly sunny, with a high near 18.
Monday Night
Mostly cloudy, with a low around 4.
Tuesday
Partly sunny, with a high near 24.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Darien WI
 42.59°N 88.75°W (Elev. 889 ft)
Last Update:
7:37 pm CST Dec 9, 2025
Forecast Valid:
8pm CST Dec 9, 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