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

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

78°F

26°C

Humidity 60%
Wind Speed S 6 mph
Barometer 30.02 in (1015.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 30 Aug 10:53 pm CDT
Extended Forecast for

4 Miles WSW Casey IL

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 5 to 7 mph, with gusts as high as 15 mph.

    Low: 69 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 94. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73. South southwest wind around 7 mph.

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 9 mph.

    High: 96 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 76. South southwest wind 3 to 6 mph.

    Low: 76 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Southwest wind 6 to 9 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southwest wind around 5 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

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

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 5 to 7 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 94. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around 73. South southwest wind around 7 mph.
Tuesday
Sunny and hot, with a high near 96. Heat index values as high as 101. Southwest wind 6 to 9 mph.
Tuesday Night
Clear, with a low around 76. South southwest wind 3 to 6 mph.
Wednesday
Sunny and hot, with a high near 98. Southwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 74.
Friday
Sunny, with a high near 94.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 67.
Sunday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Casey IL
 39.28°N 88.06°W (Elev. 600 ft)
Last Update:
10:36 pm CDT Aug 30, 2026
Forecast Valid:
11pm CDT Aug 30, 2026-6pm CDT Sep 6, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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