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.

Overcast

53°F

12°C

Humidity 96%
Wind Speed S 12 mph
Barometer 30.19 in (1022.3 mb)
Dewpoint 52°F (11°C)
Visibility 8.00 mi
Wind Chill49°F (9°C)
Last update 2 Nov 2:53 am CST
Extended Forecast for

Allerton IL

  • Overnight

    Overnight: Patchy drizzle. Cloudy, with a low around 54. South southeast wind around 9 mph, with gusts as high as 16 mph.

    Low: 54 °F

    Patchy
    Drizzle

  • Monday

    Monday: Patchy drizzle before noon. Cloudy, with a high near 65. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 65 °F

    Patchy
    Drizzle then
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 60. South wind 14 to 18 mph, with gusts as high as 30 mph.

    Low: 60 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of rain after 5pm. Increasing clouds, with a high near 75. Breezy, with a south wind 18 to 23 mph, with gusts as high as 36 mph.

    High: 75 °F

    Breezy.
    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain. Low around 58. South wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 58 °F

    Rain

  • Wednesday

    Wednesday: Rain likely before noon. Partly sunny, with a high near 68. West southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 68 °F

    Rain Likely
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 46. Southwest wind around 6 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 45.

    Low: 45 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy drizzle. Cloudy, with a low around 54. South southeast wind around 9 mph, with gusts as high as 16 mph.
Monday
Patchy drizzle before noon. Cloudy, with a high near 65. South southeast wind 10 to 14 mph, with gusts as high as 24 mph.
Monday Night
Mostly cloudy, with a low around 60. South wind 14 to 18 mph, with gusts as high as 30 mph.
Tuesday
A 40 percent chance of rain after 5pm. Increasing clouds, with a high near 75. Breezy, with a south wind 18 to 23 mph, with gusts as high as 36 mph.
Tuesday Night
Rain. Low around 58. South wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday
Rain likely before noon. Partly sunny, with a high near 68. West southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 46. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 65.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 40.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Allerton IL
 39.91°N 87.93°W (Elev. 666 ft)
Last Update:
1:21 am CST Nov 2, 2026
Forecast Valid:
3am CST Nov 2, 2026-6pm CST Nov 8, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation