Major Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold in the North-Central U.S.

A large, long-duration winter storm is expected to bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies/Plains into the Mid-South beginning Friday, spreading eastward to the Mid-Atlantic and New England this weekend. An Arctic front will bring frigid temperatures and gusty winds that will lead to dangerous wind chills from the Northern Plains and Upper Midwest. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Mostly Cloudy

18°F

-8°C

Humidity 62%
Wind Speed W 18 G 30 mph
Barometer 30.16 in
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Wind Chill2°F (-17°C)
Last update 22 Jan 11:45 am CST
Extended Forecast for

2 Miles N Janesville WI

Cold Weather Advisory January 23, 01:00pm until January 24, 12:00pm
Extreme Cold Warning January 23, 12:00am until January 23, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  • This Afternoon

    This Afternoon: A slight chance of snow before 5pm, then a chance of flurries after 5pm.  Patchy blowing snow before 4pm. Mostly cloudy, with a high near 19. Wind chill values between -5 and zero. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 20%.

    High: 19 °F

    Slight Chance
    Snow and
    Patchy
    Blowing Snow

  • Tonight

    Tonight: A chance of flurries before 9pm.  Partly cloudy, with a low around -17. Wind chill values between -30 and -40. Northwest wind around 15 mph, with gusts as high as 30 mph.

    Low: -17 °F

    Chance
    Flurries

  • Friday

    Friday: Sunny and cold, with a high near -5. Wind chill values between -30 and -40. Northwest wind 10 to 15 mph.

    High: -5 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -16. Wind chill values between -20 and -25. Northwest wind around 5 mph becoming calm  in the evening.

    Low: -16 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow showers after noon.  Mostly cloudy and cold, with a high near 2. Calm wind becoming north around 5 mph.

    High: 2 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of snow.  Mostly cloudy, with a low around -7. Calm wind becoming north around 5 mph after midnight.

    Low: -7 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow.  Mostly cloudy and cold, with a high near 10. North wind 5 to 10 mph.

    High: 10 °F

    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around -8. Northwest wind 5 to 10 mph.

    Low: -8 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny and cold, with a high near 10.

    High: 10 °F

    Cold

Detailed Forecast

This Afternoon
A slight chance of snow before 5pm, then a chance of flurries after 5pm. Patchy blowing snow before 4pm. Mostly cloudy, with a high near 19. Wind chill values between -5 and zero. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Tonight
A chance of flurries before 9pm. Partly cloudy, with a low around -17. Wind chill values between -30 and -40. Northwest wind around 15 mph, with gusts as high as 30 mph.
Friday
Sunny and cold, with a high near -5. Wind chill values between -30 and -40. Northwest wind 10 to 15 mph.
Friday Night
Mostly cloudy, with a low around -16. Wind chill values between -20 and -25. Northwest wind around 5 mph becoming calm in the evening.
Saturday
A 20 percent chance of snow showers after noon. Mostly cloudy and cold, with a high near 2. Calm wind becoming north around 5 mph.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around -7. Calm wind becoming north around 5 mph after midnight.
Sunday
A 30 percent chance of snow. Mostly cloudy and cold, with a high near 10. North wind 5 to 10 mph.
Sunday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around -8. Northwest wind 5 to 10 mph.
Monday
Mostly sunny and cold, with a high near 10.
Monday Night
Partly cloudy, with a low around 0.
Tuesday
Partly sunny, with a high near 18.
Tuesday Night
Mostly cloudy, with a low around 1.
Wednesday
A 20 percent chance of snow. Partly sunny, with a high near 14.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Janesville WI
 42.71°N 89°W (Elev. 892 ft)
12:36 pm CST Jan 22, 2026
12pm CST Jan 22, 2026-6pm CST Jan 28, 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