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.

Mostly Cloudy

80°F

27°C

Humidity 60%
Wind Speed S 20 G 37 mph
Barometer 29.85 in (1010.4 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 17 Apr 2:53 pm CDT
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

Flood Watch April 17, 06:00pm until April 18, 04:00am
Click here for hazard details and duration
Flood Watch

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 17 mph, with gusts as high as 30 mph.

    High: 81 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 49. South wind 14 to 16 mph becoming west southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Showers
    Likely then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 56. Northwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 2am. Otherwise, mostly clear, with a low around 37. Northwest wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 22 mph.

    Low: 37 °F

    Mostly Clear
    then Patchy
    Frost

  • Sunday

    Sunday: Patchy frost before 9am. Otherwise, sunny, with a high near 60. West wind 6 to 16 mph, with gusts as high as 28 mph.

    High: 60 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 2am. Otherwise, mostly clear, with a low around 36. Northwest wind 6 to 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.

    Low: 36 °F

    Mostly Clear
    then Patchy
    Frost

  • Monday

    Monday: Patchy frost before 9am. Otherwise, sunny, with a high near 61. East northeast wind around 7 mph becoming south in the afternoon.

    High: 61 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81. South wind around 17 mph, with gusts as high as 30 mph.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 49. South wind 14 to 16 mph becoming west southwest after midnight. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 9am, then a slight chance of showers between 9am and 10am. Mostly cloudy, then gradually becoming sunny, with a high near 56. Northwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Patchy frost after 2am. Otherwise, mostly clear, with a low around 37. Northwest wind 6 to 13 mph becoming west southwest after midnight. Winds could gust as high as 22 mph.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 60. West wind 6 to 16 mph, with gusts as high as 28 mph.
Sunday Night
Patchy frost after 2am. Otherwise, mostly clear, with a low around 36. Northwest wind 6 to 10 mph becoming north northeast after midnight. Winds could gust as high as 17 mph.
Monday
Patchy frost before 9am. Otherwise, sunny, with a high near 61. East northeast wind around 7 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.46°N 88.28°W (Elev. 679 ft)
Last Update:
1:46 pm CDT Apr 17, 2026
Forecast Valid:
3pm CDT Apr 17, 2026-6pm CDT Apr 23, 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