Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Fair

83°F

28°C

Humidity 85%
Wind Speed S 8 mph
Barometer 30.12 in (1019.3 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 2 Jul 8:53 am CDT
Extended Forecast for

Monticello IL

Extreme Heat Warning July 2, 08:58am until July 3, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 08:58am until July 3, 07:00pm

    NOW until 7:00pm Fri

    Extreme Heat Warning

  • Today

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. South southwest wind 6 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 4pm.  Mostly sunny, with a high near 92. Heat index values as high as 103. South southwest wind 7 to 11 mph, with gusts as high as 17 mph.

    High: 92 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 73. South southwest wind around 7 mph.

    Low: 73 °F

    Chance
    T-storms

  • Independence Day

    Independence Day: Showers and thunderstorms likely after 1pm.  Mostly sunny, with a high near 90. South southwest 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.

    High: 90 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph.

    Low: 71 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 88. West northwest wind 6 to 8 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 92. Heat index values as high as 105. South southwest wind 7 to 11 mph, with gusts as high as 17 mph.
Tonight
Mostly clear, with a low around 75. South southwest wind 6 to 8 mph.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 103. South southwest wind 7 to 11 mph, with gusts as high as 17 mph.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. South southwest wind around 7 mph.
Independence Day
Showers and thunderstorms likely after 1pm. Mostly sunny, with a high near 90. South southwest 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.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind 5 to 7 mph.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. West northwest wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 86.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
Mostly sunny, with a high near 86.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
Partly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello IL
 40.03°N 88.58°W (Elev. 650 ft)
5:21 am CDT Jul 2, 2026
8am CDT Jul 2, 2026-6pm CDT Jul 8, 2026
 
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