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Hazardous Weather Conditions

Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Partly Cloudy

75°F

24°C

Humidity 90%
Wind Speed NE 12 mph
Barometer 29.97 in (1014.3 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Last update 13 Aug 9:53 pm CDT
Extended Forecast for

Monticello IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind around 9 mph.

    Low: 70 °F

    Heavy Rain

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 89. Heat index values as high as 102. East southeast wind around 8 mph.

    High: 89 °F

    Heavy Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 73. East wind around 9 mph.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Heat index values as high as 105. South southeast wind 8 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 73. Southwest wind 6 to 8 mph.

    Low: 73 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 89. West wind 7 to 10 mph.

    High: 89 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 68. North wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 1am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 70. East wind around 9 mph.
Friday
A 50 percent chance of showers and thunderstorms, mainly before 10am. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 89. Heat index values as high as 102. East southeast wind around 8 mph.
Friday Night
Partly cloudy, with a low around 73. East wind around 9 mph.
Saturday
Mostly sunny, with a high near 91. Heat index values as high as 105. South southeast wind 8 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 16 mph.
Saturday Night
Partly cloudy, with a low around 73. Southwest wind 6 to 8 mph.
Sunday
Partly sunny, with a high near 89. West wind 7 to 10 mph.
Sunday Night
Showers likely and possibly a thunderstorm before 1am. Mostly cloudy, with a low around 68. North wind 6 to 9 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 63.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 67.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello IL
 40.03°N 88.58°W (Elev. 650 ft)
Last Update:
9:36 pm CDT Aug 13, 2026
Forecast Valid:
10pm CDT Aug 13, 2026-6pm CDT Aug 20, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation