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.

Fair

9°F

-13°C

Humidity 78%
Wind Speed W 5 mph
Barometer 30.05 in
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Wind Chill0°F (-18°C)
Last update 1 Jan 5:45 am CST
Extended Forecast for

7 Miles WSW Fort Atkinson WI

  • New Year's Day

    New Year's Day: Snow, mainly before 2pm.  High near 18. Wind chill values between -5 and 5. West wind around 5 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 18 °F

    Snow

  • Tonight

    Tonight: Partly cloudy, with a low around 8. West wind around 5 mph.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 21. Northwest wind around 5 mph.

    High: 21 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 13. Northwest wind around 5 mph becoming calm.

    Low: 13 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 25. Calm wind becoming west around 5 mph.

    High: 25 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 8. West wind around 5 mph becoming calm.

    Low: 8 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 27. Calm wind becoming south around 5 mph in the afternoon.

    High: 27 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 30 percent chance of snow, mainly before midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 21. South wind around 5 mph.

    Low: 21 °F

    Chance Snow

  • Monday

    Monday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

New Year's Day
Snow, mainly before 2pm. High near 18. Wind chill values between -5 and 5. West wind around 5 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Partly cloudy, with a low around 8. West wind around 5 mph.
Friday
Sunny, with a high near 21. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 13. Northwest wind around 5 mph becoming calm.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 25. Calm wind becoming west around 5 mph.
Saturday Night
Mostly clear, with a low around 8. West wind around 5 mph becoming calm.
Sunday
Increasing clouds, with a high near 27. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
A 30 percent chance of snow, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 21. South wind around 5 mph.
Monday
Partly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 37.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Fort Atkinson WI
 42.88°N 88.96°W (Elev. 774 ft)
5:37 am CST Jan 1, 2026
6am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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Additional Resources

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