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

76°F

24°C

Humidity 52%
Wind Speed NW 10 mph
Barometer 30.00 in (1015.5 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 12 Jun 11:53 am CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. West northwest wind around 9 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. Light and variable wind.

    Low: 59 °F

    Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. South wind 5 to 10 mph, with gusts as high as 17 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 64. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    T-storms
    Likely then
    T-storms

  • Sunday

    Sunday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 17 mph.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 73. West northwest wind 3 to 8 mph.

    High: 73 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 81. West northwest wind around 9 mph.
Tonight
Clear, with a low around 59. Light and variable wind.
Saturday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. South wind 5 to 10 mph, with gusts as high as 17 mph.
Saturday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 64. South wind 6 to 8 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Northwest wind 13 to 15 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 54. Northwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 17 mph.
Monday
Mostly sunny, with a high near 73. West northwest wind 3 to 8 mph.
Monday Night
Partly cloudy, with a low around 54.
Tuesday
Sunny, with a high near 77.
Tuesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 59.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Breezy.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.51°N 88.27°W (Elev. 656 ft)
Last Update:
11:11 am CDT Jun 12, 2026
Forecast Valid:
12pm CDT Jun 12, 2026-6pm CDT Jun 18, 2026
 
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