National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
News Headlines

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

68°F

20°C

Humidity 84%
Wind Speed E 10 mph
Barometer 30.08 in (1018.1 mb)
Dewpoint 63°F (17°C)
Visibility 9.00 mi
Last update 15 Oct 1:53 am CDT
Extended Forecast for

Mattoon IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 63. East northeast wind around 7 mph.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 78. East wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Increasing clouds, with a low around 49. Breezy, with a southwest wind 14 to 20 mph becoming west northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 49 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers after 5pm. Partly sunny, with a high near 56. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.

    High: 56 °F

    Mostly Cloudy
    and Breezy
    then Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 13 to 17 mph, with gusts as high as 24 mph.

    Low: 38 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 59. North northeast wind 3 to 8 mph.

    High: 59 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 35. Light and variable wind.

    Low: 35 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 67.

    High: 67 °F

    Areas Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 63. East northeast wind around 7 mph.
Thursday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3pm. High near 78. East wind 6 to 10 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Increasing clouds, with a low around 49. Breezy, with a southwest wind 14 to 20 mph becoming west northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers after 5pm. Partly sunny, with a high near 56. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 31 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 38. North wind 13 to 17 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 59. North northeast wind 3 to 8 mph.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 35. Light and variable wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 67.
Sunday Night
Clear, with a low around 39.
Monday
Mostly sunny, with a high near 72.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mattoon IL
 39.47°N 88.36°W (Elev. 728 ft)
Last Update:
1:55 am CDT Oct 15, 2026
Forecast Valid:
2am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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