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.

Overcast

36°F

2°C

Humidity 56%
Wind Speed SE 12 mph
Barometer 30.12 in
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 14 Mar 2:45 pm CDT
Extended Forecast for

6 Miles S Afton WI

Winter Storm Watch March 15, 04:00pm until March 16, 07:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: A slight chance of snow before midnight, then a chance of rain. Cloudy, with a low around 34. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

    Low: 34 °F

    Slight Chance
    Snow then
    Chance Rain

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 9am. High near 54. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Rain and
    Breezy

  • Sunday Night

    Sunday Night: Rain, snow, and sleet before 9pm, then snow and sleet between 9pm and 10pm, then snow after 10pm. Patchy blowing snow after 10pm. Low around 17. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.

    Low: 17 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 21. Wind chill values between zero and 5. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    High: 21 °F

    Snow Likely
    and Areas
    Blowing Snow

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.

    Low: 3 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. West wind 5 to 10 mph.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow. Low around 17. South wind 5 to 10 mph. Chance of precipitation is 80%.

    Low: 17 °F

    Snow

  • Wednesday

    Wednesday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 42. South wind 5 to 10 mph becoming west in the afternoon.

    High: 42 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of snow before midnight, then a chance of rain. Cloudy, with a low around 34. East wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.
Sunday
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 9am. High near 54. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Rain, snow, and sleet before 9pm, then snow and sleet between 9pm and 10pm, then snow after 10pm. Patchy blowing snow after 10pm. Low around 17. Windy, with a north wind 20 to 25 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 2 to 4 inches possible.
Monday
Snow likely, mainly before 1pm. Areas of blowing snow. Cloudy, with a high near 21. Wind chill values between zero and 5. Windy, with a northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 3. Blustery, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph.
Tuesday
Mostly sunny, with a high near 23. West wind 5 to 10 mph.
Tuesday Night
Snow. Low around 17. South wind 5 to 10 mph. Chance of precipitation is 80%.
Wednesday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 42. South wind 5 to 10 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 56.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Partly sunny, with a high near 57.
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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:
2:37 pm CDT Mar 14, 2026
Forecast Valid:
3pm CDT Mar 14, 2026-6pm CDT Mar 21, 2026
 
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