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.

Partly Cloudy

-8°F

-22°C

Humidity 40%
Wind Speed NW 13 mph
Barometer 30.72 in
Dewpoint -26°F (-32°C)
Visibility 10.00 mi
Wind Chill-28°F (-33°C)
Last update 23 Jan 2:45 pm CST
Extended Forecast for

Beloit WI

Cold Weather Advisory January 23, 03:16pm until January 24, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 23, 03:16pm until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • Tonight

    Low: -17 °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 3am.  Cloudy, with a low around -1. Wind chill values between -5 and -10. Calm wind becoming north around 5 mph after midnight.

    Low: -1 °F

    Chance Snow

  • Sunday

    Sunday: A 20 percent chance of snow.  Mostly cloudy, with a high near 11. Wind chill values between -5 and -15. North wind around 10 mph.

    High: 11 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around -4. North wind around 10 mph.

    Low: -4 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 7. West wind 10 to 15 mph.

    High: 7 °F

    Cold

  • Monday Night

    Monday Night: Partly cloudy, with a low around 0. Southwest wind 10 to 15 mph.

    Low: 0 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 15. Northwest wind 10 to 15 mph.

    High: 15 °F

    Partly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around -17. Wind chill values between -20 and -25. Northwest wind around 5 mph becoming calm after midnight.
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 3am. Cloudy, with a low around -1. Wind chill values between -5 and -10. Calm wind becoming north around 5 mph after midnight.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 11. Wind chill values between -5 and -15. North wind around 10 mph.
Sunday Night
Partly cloudy, with a low around -4. North wind around 10 mph.
Monday
Sunny and cold, with a high near 7. West wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 0. Southwest wind 10 to 15 mph.
Tuesday
Partly sunny, with a high near 15. Northwest wind 10 to 15 mph.
Tuesday Night
Partly cloudy, with a low around -3.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 11.
Wednesday Night
Partly cloudy, with a low around -3.
Thursday
Mostly sunny, with a high near 11.
Thursday Night
Partly cloudy, with a low around -2.
Friday
Mostly sunny, with a high near 16.
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ABOUT THIS FORECAST

 
Point Forecast:
Beloit WI
 42.52°N 89.02°W (Elev. 745 ft)
3:12 pm CST Jan 23, 2026
3pm CST Jan 23, 2026-6pm CST Jan 30, 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