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

Monroe Municipal Airport (KEFT)

Lat: 42.62°NLon: 89.59°WElev: 1082ft.

Fair

10°F

-12°C

Humidity 77%
Wind Speed N 8 mph
Barometer 30.03 in
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 1 Jan 2:55 am CST
Extended Forecast for

Monticello WI

  • Overnight

    Overnight: Partly cloudy, with a low around 8. Wind chill values between zero and 5. Northwest wind around 5 mph.

    Low: 8 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: A 30 percent chance of snow, mainly before 2pm.  Mostly cloudy, with a high near 19. Wind chill values between zero and 10. West wind around 5 mph.

    High: 19 °F

    Chance Snow

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. West wind around 5 mph.

    Low: 11 °F

    Partly 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 15. Northwest wind around 5 mph becoming calm.

    Low: 15 °F

    Mostly Cloudy

  • Saturday

    Saturday: Cloudy, then gradually becoming mostly sunny, with a high near 26. Calm wind becoming west around 5 mph in the afternoon.

    High: 26 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 11. West wind around 5 mph becoming calm  in the evening.

    Low: 11 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 27. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

    High: 27 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight.  Mostly cloudy, with a low around 23.

    Low: 23 °F

    Slight Chance
    Snow then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 8. Wind chill values between zero and 5. Northwest wind around 5 mph.
New Year's Day
A 30 percent chance of snow, mainly before 2pm. Mostly cloudy, with a high near 19. Wind chill values between zero and 10. West wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 11. West wind around 5 mph.
Friday
Mostly sunny, with a high near 22. Northwest wind around 5 mph.
Friday Night
Mostly cloudy, with a low around 15. Northwest wind around 5 mph becoming calm.
Saturday
Cloudy, then gradually becoming mostly sunny, with a high near 26. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 11. West wind around 5 mph becoming calm in the evening.
Sunday
Increasing clouds, with a high near 27. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 23.
Monday
Mostly sunny, with a high near 40.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello WI
 42.75°N 89.59°W (Elev. 850 ft)
2:16 am CST Jan 1, 2026
3am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database