National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

81°F

27°C

Humidity 74%
Wind Speed S 10 mph
Barometer 30.00 in (1015.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 22 Jun 12:53 am CDT
Extended Forecast for

3 Miles SE Windsor IL

Heat Advisory June 22, 01:09am until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 01:09am until June 24, 07:00pm

    NOW until 7:00pm Tue

    Heat Advisory

  • Overnight

    Low: 74 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 93. Heat index values as high as 101. South southwest wind 7 to 11 mph, with gusts as high as 23 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 74. South wind 6 to 9 mph, with gusts as high as 17 mph.

    Low: 74 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 94. South southwest wind 6 to 8 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 74. South wind 3 to 6 mph.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. South southwest wind 3 to 6 mph.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

Detailed Forecast

Overnight
Clear, with a low around 74. South wind 8 to 10 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 93. Heat index values as high as 101. South southwest wind 7 to 11 mph, with gusts as high as 23 mph.
Sunday Night
Clear, with a low around 74. South wind 6 to 9 mph, with gusts as high as 17 mph.
Monday
Sunny, with a high near 94. South southwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 74. South wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 93. South southwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 73. South southwest wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 73.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 91.
Thursday Night
Partly cloudy, with a low around 73.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Windsor IL
 39.41°N 88.57°W (Elev. 656 ft)
Last Update:
12:27 am CDT Jun 22, 2025
Forecast Valid:
1am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation