Above Average Temperatures for Most Today; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures are forecast today into Wednesday over most of the lower 48 states away from the Gulf Coast. A storm system passing across southern Canada will bring a wintry mix to the upper Great Lakes today. A trailing cold front will then bring the wintry mix from the central Appalachians through the Northeast U.S. Wednesday and Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

37°F

3°C

Humidity 75%
Wind Speed SW 6 mph
Barometer 29.59 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill32°F (0°C)
Last update 13 Jan 6:45 am CST
Extended Forecast for

6 Miles S Afton WI

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 49. West wind around 15 mph, with gusts as high as 30 mph.

    High: 49 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A slight chance of rain between midnight and 1am, then a slight chance of snow after 1am.  Cloudy, with a low around 22. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 22 °F

    Cloudy then
    Slight Chance
    Rain/Snow and
    Blustery

  • Wednesday

    Wednesday: Mostly sunny, with a high near 25. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 25 °F

    Mostly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. Wind chill values between zero and 5. North wind 10 to 15 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 25. Northwest wind 5 to 15 mph becoming southwest in the afternoon.

    High: 25 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow.  Low around 20. South wind around 15 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 20 °F

    Snow

  • Friday

    Friday: Snow likely.  Mostly cloudy, with a high near 33. West wind around 15 mph.  Chance of precipitation is 70%.

    High: 33 °F

    Snow Likely

  • Friday Night

    Friday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 11. West wind around 15 mph.

    Low: 11 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow.  Mostly cloudy, with a high near 17.

    High: 17 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 49. West wind around 15 mph, with gusts as high as 30 mph.
Tonight
A slight chance of rain between midnight and 1am, then a slight chance of snow after 1am. Cloudy, with a low around 22. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 25. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Partly cloudy, with a low around 10. Wind chill values between zero and 5. North wind 10 to 15 mph.
Thursday
Increasing clouds, with a high near 25. Northwest wind 5 to 15 mph becoming southwest in the afternoon.
Thursday Night
Snow. Low around 20. South wind around 15 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Friday
Snow likely. Mostly cloudy, with a high near 33. West wind around 15 mph. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11. West wind around 15 mph.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 17.
Saturday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 14.
Sunday Night
Mostly cloudy, with a low around 2.
M.L.King Day
Partly sunny, with a high near 16.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Afton WI
 42.6°N 89.07°W (Elev. 751 ft)
7:36 am CST Jan 13, 2026
7am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database