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

91°F

33°C

Humidity 57%
Wind Speed N 10 mph
Barometer 29.88 in (1011.1 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 5 Sep 5:53 pm CDT
Extended Forecast for

5 Miles ENE Shelbyville IL

Extreme Heat Warning September 5, 06:36pm until September 5, 07:00pm
Click here for hazard details and duration
...
  •  
    Extreme Heat Warning September 5, 06:36pm until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 87. Northeast wind 8 to 11 mph, with gusts as high as 17 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East northeast wind 5 to 8 mph, with gusts as high as 15 mph.

    Low: 61 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 87. East wind 5 to 7 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East wind 3 to 6 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. South wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 72. South wind 5 to 9 mph, with gusts as high as 17 mph.

    Low: 72 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

Detailed Forecast

Tonight
Partly cloudy, with a low around 67. Northeast wind 6 to 10 mph, with gusts as high as 17 mph.
Sunday
Sunny, with a high near 87. Northeast wind 8 to 11 mph, with gusts as high as 17 mph.
Sunday Night
Mostly clear, with a low around 61. East northeast wind 5 to 8 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 87. East wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 63. East wind 3 to 6 mph.
Tuesday
Sunny, with a high near 94. South wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 72. South wind 5 to 9 mph, with gusts as high as 17 mph.
Wednesday
Sunny and hot, with a high near 97.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68.
Thursday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ENE Shelbyville IL
 39.44°N 88.71°W (Elev. 663 ft)
Last Update:
5:41 pm CDT Sep 5, 2026
Forecast Valid:
6pm CDT Sep 5, 2026-6pm CDT Sep 12, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation