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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 72%
Wind Speed SW 5 mph
Barometer 29.94 in (1012.9 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 4 Sep 11:53 pm CDT
Extended Forecast for

3 Miles WNW Mattoon IL

Extreme Heat Warning September 5, 12:50am until September 5, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 5, 12:50am until September 5, 07:00pm

    NOW until 7:00pm Sat

    Extreme Heat Warning

  • Overnight

    Low: 74 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming north northwest 5 to 9 mph in the morning.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 68. Northeast wind 7 to 10 mph, with gusts as high as 16 mph.

    Low: 68 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 86. Northeast wind 8 to 10 mph, with gusts as high as 16 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 61. East northeast wind 5 to 9 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 6 to 8 mph.

    High: 87 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. East wind 5 to 7 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 74. Calm wind.
Saturday
Sunny and hot, with a high near 97. Heat index values as high as 103. Calm wind becoming north northwest 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 68. Northeast wind 7 to 10 mph, with gusts as high as 16 mph.
Sunday
Sunny, with a high near 86. Northeast wind 8 to 10 mph, with gusts as high as 16 mph.
Sunday Night
Mostly clear, with a low around 61. East northeast wind 5 to 9 mph, with gusts as high as 15 mph.
Labor Day
Sunny, with a high near 87. East wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 63. East wind 5 to 7 mph.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 71.
Thursday
Mostly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Mattoon IL
 39.49°N 88.42°W (Elev. 732 ft)
Last Update:
12:36 am CDT Sep 5, 2026
Forecast Valid:
12am CDT Sep 5, 2026-6pm CDT Sep 11, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation