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.

Partly Cloudy

50°F

10°C

Humidity 58%
Wind Speed SW 18 mph
Barometer 29.55 in
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 13 Jan 11:45 am CST
Extended Forecast for

3 Miles NNW Afton WI

  • Today

    Today: Increasing clouds, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Increasing
    Clouds and
    Breezy

  • Tonight

    Tonight: A slight chance of sprinkles before 1am, then a slight chance of snow showers between 1am and 4am, then scattered flurries after 4am.  Cloudy, with a low around 21. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    Low: 21 °F

    Cloudy then
    Isolated Snow
    Showers and
    Blustery

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 24. Blustery, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 24 °F

    Decreasing
    Clouds 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, with gusts as high as 25 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of snow after noon.  Increasing clouds, with a high near 25. Northwest wind 5 to 15 mph becoming south in the afternoon.

    High: 25 °F

    Sunny then
    Slight Chance
    Snow

  • 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.  High near 32. West wind around 15 mph.  Chance of precipitation is 80%.

    High: 32 °F

    Snow

  • 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 15.

    High: 15 °F

    Chance Snow

Detailed Forecast

Today
Increasing clouds, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
A slight chance of sprinkles before 1am, then a slight chance of snow showers between 1am and 4am, then scattered flurries after 4am. Cloudy, with a low around 21. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 24. 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, with gusts as high as 25 mph.
Thursday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 25. Northwest wind 5 to 15 mph becoming south 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. High near 32. West wind around 15 mph. Chance of precipitation is 80%.
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 15.
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 15.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Afton WI
 42.74°N 89.12°W (Elev. 948 ft)
11:32 am CST Jan 13, 2026
11am CST Jan 13, 2026-6pm CST Jan 19, 2026
 
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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