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

78°F

26°C

Humidity 67%
Wind Speed S 12 mph
Barometer 30.04 in (1016.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 20 Jun 9:53 am CDT
Extended Forecast for

Casey IL

Heat Advisory June 21, 12:00pm until June 24, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 86. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 86 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 73. South wind around 10 mph, with gusts as high as 22 mph.

    Low: 73 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 92. Heat index values as high as 101. South southwest wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 92 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind 9 to 13 mph, with gusts as high as 22 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 93. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75. South wind 6 to 9 mph, with gusts as high as 15 mph.

    Low: 75 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 92. South southwest wind 6 to 8 mph.

    High: 92 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 86. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Tonight
Mostly clear, with a low around 73. South wind around 10 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 92. Heat index values as high as 101. South southwest wind 11 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 9 to 13 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 93. South southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Mostly clear, with a low around 75. South wind 6 to 9 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 92. South southwest wind 6 to 8 mph.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 75.
Wednesday
A chance of showers and thunderstorms. Sunny, with a high near 91.
Wednesday Night
Partly cloudy, with a low around 74.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Casey IL
 39.3°N 88°W (Elev. 643 ft)
Last Update:
9:56 am CDT Jun 20, 2025
Forecast Valid:
10am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation