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

68°F

20°C

Humidity 81%
Wind Speed S 5 mph
Barometer 30.02 in (1016.0 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 19 Jun 11:53 pm CDT
Extended Forecast for

3 Miles SSW Mattoon IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Calm wind becoming west southwest around 5 mph after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 81. Northwest wind 5 to 7 mph.

    High: 81 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm.

    Low: 62 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers and thunderstorms after 1pm. High near 78. Southeast wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 78 °F

    Chance
    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 63. South southwest wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 63 °F

    T-storms

  • Monday

    Monday: Partly sunny, with a high near 74. North wind around 11 mph, with gusts as high as 20 mph.

    High: 74 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. Calm wind becoming west southwest around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 81. Northwest wind 5 to 7 mph.
Saturday Night
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 62. Northwest wind around 5 mph becoming calm.
Sunday
A chance of showers, then showers and thunderstorms after 1pm. High near 78. Southeast wind 7 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm after 1am. Low around 63. South southwest wind 11 to 15 mph becoming northwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
Partly sunny, with a high near 74. North wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 55. North northeast wind 6 to 10 mph, with gusts as high as 17 mph.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mattoon IL
 39.45°N 88.39°W (Elev. 751 ft)
Last Update:
10:16 pm CDT Jun 19, 2026
Forecast Valid:
11pm CDT Jun 19, 2026-6pm CDT Jun 26, 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