Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

-11°F

-24°C

Humidity 48%
Wind Speed NW 12 mph
Barometer 30.73 in
Dewpoint -26°F (-32°C)
Visibility 10.00 mi
Wind Chill-31°F (-35°C)
Last update 23 Jan 10:45 am CST
Extended Forecast for

5 Miles SSW Janesville WI

Cold Weather Advisory January 23, 01:00pm until January 24, 12:00pm
Extreme Cold Warning January 23, 10:55am until January 23, 01:00pm
Click here for hazard details and duration
Cold Weather Advisory
Extreme Cold Warning
  •  
    Extreme Cold Warning January 23, 10:55am until January 23, 01:00pm

    NOW until 1:00pm Fri

    Extreme Cold Warning

  • Today

    High: -6 °F

    Cold

  • Tonight

    Tonight: Partly cloudy, with a low around -15. Wind chill values between -20 and -25. Northwest wind around 5 mph.

    Low: -15 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy and cold, with a high near 3. Wind chill values between -5 and -15. Calm wind.

    High: 3 °F

    Cold

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after midnight.  Cloudy, with a low around -4. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.

    Low: -4 °F

    Chance Snow

  • Sunday

    Sunday: A 30 percent chance of snow, mainly before noon.  Mostly cloudy and cold, with a high near 9. North wind around 10 mph.

    High: 9 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -7. Northwest wind around 10 mph.

    Low: -7 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny and cold, with a high near 9. Northwest wind 10 to 15 mph becoming southwest in the afternoon.

    High: 9 °F

    Cold

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 2. Southwest wind 10 to 15 mph.

    Low: 2 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny and cold, with a high near -6. Wind chill values between -25 and -35. Northwest wind 10 to 15 mph.
Tonight
Partly cloudy, with a low around -15. Wind chill values between -20 and -25. Northwest wind around 5 mph.
Saturday
Mostly cloudy and cold, with a high near 3. Wind chill values between -5 and -15. Calm wind.
Saturday Night
A 30 percent chance of snow, mainly after midnight. Cloudy, with a low around -4. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.
Sunday
A 30 percent chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 9. North wind around 10 mph.
Sunday Night
Mostly cloudy, with a low around -7. Northwest wind around 10 mph.
Monday
Mostly sunny and cold, with a high near 9. Northwest wind 10 to 15 mph becoming southwest in the afternoon.
Monday Night
Mostly cloudy, with a low around 2. Southwest wind 10 to 15 mph.
Tuesday
Partly sunny, with a high near 15.
Tuesday Night
Partly cloudy, with a low around -2.
Wednesday
Mostly sunny, with a high near 11.
Wednesday Night
Mostly cloudy, with a low around -5.
Thursday
Mostly sunny and cold, with a high near 10.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
10:07 am CST Jan 23, 2026
10am CST Jan 23, 2026-6pm CST Jan 29, 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