Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Mostly Cloudy

72°F

22°C

Humidity 59%
Wind Speed E 12 mph
Barometer 29.91 in (1012.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 21 Jun 9:53 am CDT
Extended Forecast for

Allerton IL

Flood Watch until June 22, 01:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 22, 01:00am

    NOW until 1:00am Mon

    Flood Watch

  • Today

    High: 75 °F

    Mostly Cloudy
    then Heavy
    Rain

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a chance of showers after 10pm.  Cloudy, with a low around 61. South southeast wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.  Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.

    Low: 61 °F

    Showers
    Likely then
    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers, mainly before 8am.  Mostly cloudy, with a high near 74. North wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 74 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly clear, with a low around 53. North wind 5 to 11 mph, with gusts as high as 17 mph.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. North wind around 5 mph becoming calm  in the morning.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 80 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Today
Showers and thunderstorms, mainly after 1pm. Some of the storms could produce heavy rainfall. High near 75. Southeast wind 8 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tonight
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a chance of showers after 10pm. Cloudy, with a low around 61. South southeast wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts between three quarters and one inch possible.
Monday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 74. North wind 13 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 53. North wind 5 to 11 mph, with gusts as high as 17 mph.
Tuesday
Sunny, with a high near 78. North wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 57. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Allerton IL
 39.91°N 87.93°W (Elev. 666 ft)
9:16 am CDT Jun 21, 2026
10am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database