Above Average Temperatures for the West and Central Plains; Lake Effect Snow Continues

Well above average temperatures will prevail across the Plains and the West Coast this week, while a cold front will bring Arctic air to the South and East Coast Thursday and Friday. Lake effect snow is forecast downwind of the Great Lakes through Thursday along and behind the Arctic front, as well as mountain snow across the Southern Appalachians. 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 NW 12 mph
Barometer 29.60 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill29°F (-2°C)
Last update 14 Jan 2:35 am CST
Extended Forecast for

6 Miles S Afton WI

  • Overnight

    Overnight: A 30 percent chance of snow, mainly after 4am.  Mostly cloudy, with a low around 23. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 23 °F

    Chance Snow
    and Blustery

  • Wednesday

    Wednesday: A 30 percent chance of snow before 7am.  Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 9am. Windy, with a north wind 20 to 25 mph, with gusts as high as 35 mph.

    High: 24 °F

    Chance Snow
    and Windy
    then Partly
    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, with gusts as high as 25 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 25. Wind chill values between zero and 10. Northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 25 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Snow.  Low around 20. Southwest wind 10 to 15 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 20 °F

    Snow

  • Friday

    Friday: Snow likely, mainly before noon.  Mostly cloudy, with a high near 36. West wind around 15 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Snow Likely

  • Friday Night

    Friday Night: A 40 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, mainly before noon.  Mostly cloudy, with a high near 15. West wind around 15 mph.

    High: 15 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 3.

    Low: 3 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of snow, mainly after 4am. Mostly cloudy, with a low around 23. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday
A 30 percent chance of snow before 7am. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 21 by 9am. Windy, with a north wind 20 to 25 mph, with gusts as high as 35 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
Increasing clouds, with a high near 25. Wind chill values between zero and 10. Northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Snow. Low around 20. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday
Snow likely, mainly before noon. Mostly cloudy, with a high near 36. West wind around 15 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Friday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 11. West wind around 15 mph.
Saturday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 15. West wind around 15 mph.
Saturday Night
Mostly cloudy, with a low around 3.
Sunday
A 20 percent chance of snow after noon. Partly sunny, with a high near 14.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 5.
M.L.King Day
Partly sunny, with a high near 13.
Monday Night
Partly cloudy, with a low around 1.
Tuesday
Partly sunny, with a high near 14.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Afton WI
 42.6°N 89.07°W (Elev. 751 ft)
2:13 am CST Jan 14, 2026
2am CST Jan 14, 2026-6pm CST Jan 20, 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