Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain & Isolated Severe Thunderstorms in Southern California

Snow squalls are likely to cross the Lower Great Lakes this evening and the Ohio Valley through the interior Northeast/northern Mid-Atlantic overnight, before potentially reaching the I-95 corridor from D.C. to New York City early New Year’s Day morning. Heavy rain and isolated severe thunderstorms will impact coastal southern California including Los Angeles tonight into early on New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

36°F

2°C

Humidity 87%
Wind Speed W 16 mph
Barometer 29.75 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 31 Dec 2:45 pm CST
Extended Forecast for

3 Miles W Walworth WI

  • This Afternoon

    This Afternoon: Snow.  High near 34. West wind around 15 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.

    High: 34 °F

    Snow

  • Tonight

    Tonight: A 50 percent chance of snow before 7pm.  Cloudy, then gradually becoming partly cloudy, with a low around 6. Wind chill values between -5 and zero. North wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 6 °F

    Chance Snow
    then Partly
    Cloudy

  • New Year's Day

    New Year's Day: A 30 percent chance of snow, mainly between 2pm and 4pm.  Mostly cloudy, with a high near 17. Wind chill values between -5 and 5. Northwest wind 5 to 10 mph.

    High: 17 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 9. West wind around 5 mph becoming calm.

    Low: 9 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 22. Northwest wind around 5 mph.

    High: 22 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 12. Calm wind.

    Low: 12 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 25. Calm wind becoming west around 5 mph.

    High: 25 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9. Northwest wind around 5 mph becoming calm.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 25.

    High: 25 °F

    Increasing
    Clouds

Detailed Forecast

This Afternoon
Snow. High near 34. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Total daytime snow accumulation of less than one inch possible.
Tonight
A 50 percent chance of snow before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 6. Wind chill values between -5 and zero. North wind 5 to 15 mph, with gusts as high as 30 mph.
New Year's Day
A 30 percent chance of snow, mainly between 2pm and 4pm. Mostly cloudy, with a high near 17. Wind chill values between -5 and 5. Northwest wind 5 to 10 mph.
Thursday Night
Mostly cloudy, with a low around 9. West wind around 5 mph becoming calm.
Friday
Mostly sunny, with a high near 22. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 12. Calm wind.
Saturday
Mostly cloudy, with a high near 25. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 9. Northwest wind around 5 mph becoming calm.
Sunday
Increasing clouds, with a high near 25.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Monday
Partly sunny, with a high near 36.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
Mostly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Walworth WI
 42.53°N 88.66°W (Elev. 951 ft)
2:42 pm CST Dec 31, 2025
3pm CST Dec 31, 2025-6pm CST Jan 7, 2026
 
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Additional Resources

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Hourly Weather Forecast

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