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Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Snow

23°F

-5°C

Humidity 93%
Wind Speed NE 6 mph
Barometer 29.99 in
Dewpoint 21°F (-6°C)
Visibility 0.75 mi
Wind Chill16°F (-9°C)
Last update 6 Dec 11:15 pm CST
Extended Forecast for

6 Miles S Afton WI

Winter Weather Advisory December 6, 11:34pm until December 7, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 6, 11:34pm until December 7, 06:00am

    NOW until 6:00am Sun

    Winter Weather Advisory

  • Tonight

    Low: 16 °F

    Heavy Snow

  • Sunday

    Sunday: A 40 percent chance of snow, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 20. Wind chill values between zero and 10. North wind 10 to 15 mph.

    High: 20 °F

    Chance Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 0. Wind chill values between -5 and zero. North wind around 5 mph becoming calm in the evening.

    Low: 0 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 21. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 21 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of snow. Mostly cloudy, with a temperature falling to near 15 by 9pm, then rising to around 23 during the remainder of the night. South wind 10 to 15 mph.

    Low: 15 °F⇑

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of rain and snow after noon. Mostly cloudy, with a high near 36. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.

    High: 36 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain, possibly mixed with snow. Low around 27. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 27 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 33. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 33 °F

    Chance Snow
    Showers and
    Breezy

Detailed Forecast

Tonight
Snow. The snow could be heavy at times. Low around 16. Light east wind becoming northeast 5 to 10 mph after midnight. Chance of precipitation is 100%. Total nighttime snow accumulation of 2 to 4 inches possible.
Sunday
A 40 percent chance of snow, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 20. Wind chill values between zero and 10. North wind 10 to 15 mph.
Sunday Night
Mostly cloudy, with a low around 0. Wind chill values between -5 and zero. North wind around 5 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 21. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
A 40 percent chance of snow. Mostly cloudy, with a temperature falling to near 15 by 9pm, then rising to around 23 during the remainder of the night. South wind 10 to 15 mph.
Tuesday
A slight chance of rain and snow after noon. Mostly cloudy, with a high near 36. Southwest wind 10 to 15 mph. Chance of precipitation is 20%.
Tuesday Night
Rain, possibly mixed with snow. Low around 27. South wind 10 to 15 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 30 percent chance of snow showers, mainly before noon. Mostly cloudy, with a high near 33. Breezy, with a northwest wind 10 to 20 mph, with gusts as high as 25 mph.
Wednesday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 13.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 24.
Thursday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 5.
Friday
Partly sunny, with a high near 14.
Friday Night
Mostly cloudy, with a low around -3.
Saturday
Partly sunny and cold, with a high near 9.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Afton WI
 42.6°N 89.07°W (Elev. 751 ft)
Last Update:
11:17 pm CST Dec 6, 2025
Forecast Valid:
11pm CST Dec 6, 2025-6pm CST Dec 13, 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