Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Fair

-2°F

-19°C

Humidity 59%
Wind Speed N 3 mph
Barometer 30.44 in
Dewpoint -13°F (-25°C)
Visibility 10.00 mi
Last update 24 Jan 9:35 pm CST
Extended Forecast for

5 Miles SSW Janesville WI

  • Tonight

    Tonight: Cloudy, with a low around -3. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.

    Low: -3 °F

    Cloudy

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny and cold, with a high near 9. Wind chill values between -10 and -15. North wind 10 to 15 mph.

    High: 9 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -7. Wind chill values between -15 and -25. Northwest wind around 10 mph.

    Low: -7 °F

    Mostly Clear

  • Monday

    Monday: Sunny and cold, with a high near 9. Wind chill values between -15 and -25. 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

  • Tuesday

    Tuesday: Partly sunny, with a high near 14. Northwest wind 10 to 15 mph.

    High: 14 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around -3. West wind 5 to 10 mph.

    Low: -3 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of snow after noon.  Partly sunny, with a high near 12. West wind 5 to 10 mph.

    High: 12 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -4.

    Low: -4 °F

    Decreasing
    Clouds

Detailed Forecast

Tonight
Cloudy, with a low around -3. Wind chill values between -10 and -15. Calm wind becoming north around 5 mph after midnight.
Sunday
Cloudy, then gradually becoming mostly sunny and cold, with a high near 9. Wind chill values between -10 and -15. North wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around -7. Wind chill values between -15 and -25. Northwest wind around 10 mph.
Monday
Sunny and cold, with a high near 9. Wind chill values between -15 and -25. 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 14. Northwest wind 10 to 15 mph.
Tuesday Night
Partly cloudy, with a low around -3. West wind 5 to 10 mph.
Wednesday
A 20 percent chance of snow after noon. Partly sunny, with a high near 12. West wind 5 to 10 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -4.
Thursday
Mostly sunny, with a high near 12.
Thursday Night
Mostly clear, with a low around -1.
Friday
Mostly sunny, with a high near 15.
Friday Night
Partly cloudy, with a low around 1.
Saturday
Mostly sunny, with a high near 19.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Janesville WI
 42.63°N 89.04°W (Elev. 804 ft)
8:32 pm CST Jan 24, 2026
9pm CST Jan 24, 2026-6pm CST Jan 31, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database