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 71%
Wind Speed Calm
Barometer 30.04 in (1017.4 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 10 Nov 9:53 pm CST
Extended Forecast for

Allerton IL

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, increasing clouds, with a low around 41. Light and variable wind.

    Low: 41 °F

    Clear then
    Patchy Fog

  • Veterans Day

    Veterans Day: Showers and thunderstorms likely, mainly before 3pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 65. Light and variable wind becoming north northwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Patchy Fog
    then Showers
    Likely

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 39. North northwest wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 48. North northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 48 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 29. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 29 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 43. North northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 43 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24. Northwest wind 3 to 5 mph.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

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

    Low: 26 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 41. Light and variable wind.
Veterans Day
Showers and thunderstorms likely, mainly before 3pm. Patchy fog before 7am. Otherwise, partly sunny, with a high near 65. Light and variable wind becoming north northwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 39. North northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Thursday
Partly sunny, with a high near 48. North northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 29. North northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 43. North northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Friday Night
Mostly clear, with a low around 24. Northwest wind 3 to 5 mph.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 26.
Sunday
Sunny, with a high near 49.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 31.
Tuesday
Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Allerton IL
 39.89°N 87.93°W (Elev. 719 ft)
Last Update:
10:41 pm CST Nov 10, 2026
Forecast Valid:
10pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
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