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

N/A

Humidity NA
Wind Speed E 3 mph
Barometer 29.77 in
Dewpoint N/A
Visibility 0.75 mi
Last update 29 Nov 10:15 pm CST
Extended Forecast for

Janesville WI

Winter Storm Warning November 29, 10:40pm until November 30, 06:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning November 29, 10:40pm until November 30, 06:00am

    NOW until 6:00am Sun

    Winter Storm Warning

  • Tonight

    Low: 26 °F

    Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before 8am.  Patchy blowing snow before 8am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 23 by 5pm. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 29 °F

    Chance Snow
    and Patchy
    Blowing Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 5. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 5 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of snow after noon.  Mostly cloudy, with a high near 22. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 22 °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 11. South wind around 5 mph becoming calm.

    Low: 11 °F

    Chance Snow
    then Slight
    Chance Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 21. Calm wind becoming southwest around 5 mph in the morning.

    High: 21 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 13. Southwest wind 5 to 10 mph.

    Low: 13 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of snow, mainly after noon.  Mostly cloudy, with a high near 27. Southwest wind around 10 mph becoming northwest in the afternoon.

    High: 27 °F

    Chance Snow

Detailed Forecast

Tonight
Snow. Low around 26. East wind 5 to 10 mph becoming northwest 10 to 15 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 1 to 3 inches possible.
Sunday
A 40 percent chance of snow, mainly before 8am. Patchy blowing snow before 8am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 23 by 5pm. Northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 5. Northwest wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of snow after noon. Mostly cloudy, with a high near 22. 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 11. South wind around 5 mph becoming calm.
Tuesday
Partly sunny, with a high near 21. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 13. Southwest wind 5 to 10 mph.
Wednesday
A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 27. Southwest wind around 10 mph becoming northwest in the afternoon.
Wednesday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 0.
Thursday
Mostly sunny, with a high near 15.
Thursday Night
Mostly cloudy, with a low around 1.
Friday
A 20 percent chance of snow. Mostly cloudy, with a high near 25.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 10.
Saturday
A 20 percent chance of snow. Mostly cloudy, with a high near 28.
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ABOUT THIS FORECAST

 
Point Forecast:
Janesville WI
 42.69°N 89.01°W (Elev. 863 ft)
10:36 pm CST Nov 29, 2025
10pm CST Nov 29, 2025-6pm CST Dec 6, 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