Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Light Snow

14°F

-10°C

Humidity 73%
Wind Speed W 14 G 21 mph
Barometer 29.95 in
Dewpoint 7°F (-14°C)
Visibility 4.00 mi
Wind Chill-1°F (-18°C)
Last update 17 Jan 11:45 am CST
Extended Forecast for

7 Miles WSW Fort Atkinson WI

Winter Weather Advisory until January 17, 09:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 17, 09:00pm

    NOW until 9:00pm Sat

    Winter Weather Advisory

  • This Afternoon

    High: 21 °F

    Snow

  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 8pm.  Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. West wind 10 to 15 mph.

    Low: 4 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Snow after noon.  High near 17. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph.  Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 17 °F

    Mostly Cloudy
    then Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow before midnight.  Mostly cloudy, with a low around -2. Wind chill values between -10 and -20. Blustery, with a southwest wind 10 to 20 mph becoming northwest in the evening. Winds could gust as high as 30 mph.

    Low: -2 °F

    Chance Snow
    then Mostly
    Cloudy and
    Blustery

  • M.L.King Day

    M.L.King Day: Partly sunny and cold, with a high near 6. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 6 °F

    Partly Sunny
    and Blustery
    then Partly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around -4. West wind 5 to 10 mph.

    Low: -4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 19. Southwest wind 5 to 10 mph.

    High: 19 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 11. South wind 5 to 10 mph becoming west after midnight.

    Low: 11 °F

    Chance Snow

Detailed Forecast

This Afternoon
Snow, mainly before 5pm. High near 21. West wind around 15 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
A 30 percent chance of snow, mainly before 8pm. Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. West wind 10 to 15 mph.
Sunday
Snow after noon. High near 17. Wind chill values between -10 and zero. Southwest wind 10 to 15 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Sunday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around -2. Wind chill values between -10 and -20. Blustery, with a southwest wind 10 to 20 mph becoming northwest in the evening. Winds could gust as high as 30 mph.
M.L.King Day
Partly sunny and cold, with a high near 6. Blustery, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Partly cloudy, with a low around -4. West wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 19. Southwest wind 5 to 10 mph.
Tuesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 11. South wind 5 to 10 mph becoming west after midnight.
Wednesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 23.
Wednesday Night
Mostly cloudy, with a low around 6.
Thursday
Partly sunny, with a high near 15.
Thursday Night
Mostly cloudy, with a low around 2.
Friday
A 20 percent chance of snow. Partly sunny, with a high near 17.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Fort Atkinson WI
 42.88°N 88.96°W (Elev. 774 ft)
11:17 am CST Jan 17, 2026
12pm CST Jan 17, 2026-6pm CST Jan 23, 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