Heavy Snow from the Midwest into the Great Lakes; Locally Heavy Rain in the Western Gulf Coast

A significant winter storm will produce a broad area of moderate to heavy snow from the Midwest through the western Great Lakes. Significant snow accumulations of 6-12 inches, and locally more than 1 foot, and gusty wind may cause hazardous travel conditions. Thunderstorms, some severe, and showers may produce locally heavy rain and isolated flash flooding along the western Gulf Coast. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Snow

23°F

-5°C

Humidity 100%
Wind Speed SE 9 mph
Barometer 30.28 in
Dewpoint 23°F (-5°C)
Visibility 0.50 mi
Wind Chill13°F (-11°C)
Last update 29 Nov 8:45 am CST
Extended Forecast for

3 Miles NNW Afton WI

Winter Storm Warning until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning until November 30, 06:00am

    NOW until 6:00am Sun

    Winter Storm Warning

  • Today

    High: 28 °F

    Heavy Snow

  • Tonight

    Tonight: Snow, mainly before 5am.  Patchy blowing snow after 5am. Low around 26. Blustery, with a northeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 26 °F

    Snow and
    Patchy
    Blowing Snow

  • Sunday

    Sunday: A 30 percent chance of snow before 9am.  Patchy blowing snow before 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 5pm. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 28 °F

    Chance Snow
    and Patchy
    Blowing Snow
    then Patchy
    Blowing Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 4. Northwest wind 5 to 10 mph becoming light west  after midnight.

    Low: 4 °F

    Partly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon.  Mostly cloudy, with a high near 21. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 21 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow, mainly before midnight.  Mostly cloudy, with a low around 8. Southwest wind around 5 mph becoming west after midnight.

    Low: 8 °F

    Chance Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 21. Southwest wind 5 to 10 mph.

    High: 21 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 11. Southwest wind 5 to 10 mph.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Today
Snow. The snow could be heavy at times. High near 28. Southeast wind 10 to 15 mph. Chance of precipitation is 100%. Total daytime snow accumulation of 5 to 8 inches possible.
Tonight
Snow, mainly before 5am. Patchy blowing snow after 5am. Low around 26. Blustery, with a northeast wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
A 30 percent chance of snow before 9am. Patchy blowing snow before 1pm. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 5pm. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 4. Northwest wind 5 to 10 mph becoming light west after midnight.
Monday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 21. Calm wind becoming southwest around 5 mph in the afternoon.
Monday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 8. Southwest wind around 5 mph becoming west after midnight.
Tuesday
Partly sunny, with a high near 21. Southwest wind 5 to 10 mph.
Tuesday Night
Mostly cloudy, with a low around 11. Southwest wind 5 to 10 mph.
Wednesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 27.
Wednesday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around -1.
Thursday
Mostly sunny, with a high near 15.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 3.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 26.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Afton WI
 42.74°N 89.12°W (Elev. 948 ft)
7:42 am CST Nov 29, 2025
8am CST Nov 29, 2025-6pm CST Dec 5, 2025
 
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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