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

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Fair

44°F

7°C

Humidity 68%
Wind Speed S 8 mph
Barometer 30.09 in (1019.3 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 9 Nov 8:53 pm CST
Extended Forecast for

Monticello IL

  • Tonight

    Tonight: Clear, with a low around 44. West southwest wind around 8 mph, with gusts as high as 16 mph.

    Low: 44 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. West wind around 6 mph becoming calm in the morning.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. Light and variable wind.

    Low: 41 °F

    Partly Cloudy

  • Veterans Day

    Veterans Day: A 50 percent chance of showers after noon. Partly sunny, with a high near 63. Light and variable wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 16 mph.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 40. North northwest wind 14 to 16 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 24 mph.

    High: 48 °F

    Partly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 29. North northwest wind 13 to 17 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 44. West southwest wind around 8 mph, with gusts as high as 16 mph.
Tuesday
Sunny, with a high near 66. West wind around 6 mph becoming calm in the morning.
Tuesday Night
Partly cloudy, with a low around 41. Light and variable wind.
Veterans Day
A 50 percent chance of showers after noon. Partly sunny, with a high near 63. Light and variable wind becoming northwest 8 to 13 mph in the morning. Winds could gust as high as 16 mph.
Wednesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 40. North northwest wind 14 to 16 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 48. Breezy, with a north northwest wind 16 to 20 mph, with gusts as high as 24 mph.
Thursday Night
Mostly cloudy, with a low around 29. North northwest wind 13 to 17 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Sunny, with a high near 52.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monticello IL
 40.03°N 88.58°W (Elev. 650 ft)
Last Update:
7:11 pm CST Nov 9, 2026
Forecast Valid:
9pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
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