National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Monroe Municipal Airport (KEFT)

Lat: 42.62°NLon: 89.59°WElev: 1082ft.

Overcast

19°F

-7°C

Humidity 71%
Wind Speed W 3 mph
Barometer 29.88 in
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 1 Jan 8:55 pm CST
Extended Forecast for

Monticello WI

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 10. West wind around 5 mph.

    Low: 10 °F

    Decreasing
    Clouds

  • 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 14. Northwest wind around 5 mph becoming calm.

    Low: 14 °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 12. West wind around 5 mph becoming calm after midnight.

    Low: 12 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 28. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 28 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24. South wind around 10 mph.

    Low: 24 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41. Southwest wind around 5 mph.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 10. 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 14. 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 12. West wind around 5 mph becoming calm after midnight.
Sunday
Increasing clouds, with a high near 28. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24. South wind around 10 mph.
Monday
Partly sunny, with a high near 41. Southwest wind around 5 mph.
Monday Night
Mostly cloudy, with a low around 31.
Tuesday
Mostly cloudy, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 27.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 30.
Thursday
A 20 percent chance of rain. Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello WI
 42.75°N 89.59°W (Elev. 850 ft)
Last Update:
8:48 pm CST Jan 1, 2026
Forecast Valid:
8pm CST Jan 1, 2026-6pm CST Jan 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation