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.

Overcast

76°F

24°C

Humidity 64%
Wind Speed N 8 mph
Barometer 30.01 in (1015.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 20 Jun 9:53 am CDT
Extended Forecast for

5 Miles SE Charleston IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Mostly sunny, with a high near 80. West wind around 6 mph.

    High: 80 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Light and variable wind.

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms, mainly after noon. Some of the storms could produce heavy rainfall. High near 77. Southeast wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Some of the storms could produce heavy rainfall. Low around 63. South southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 63 °F

    Heavy Rain
    then Showers

  • Monday

    Monday: Mostly cloudy, with a high near 75. North wind around 11 mph, with gusts as high as 20 mph.

    High: 75 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 56. North wind 5 to 8 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. North northeast wind around 5 mph becoming calm in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 80. West wind around 6 mph.
Tonight
Partly cloudy, with a low around 62. Light and variable wind.
Sunday
Showers and thunderstorms, mainly after noon. Some of the storms could produce heavy rainfall. High near 77. Southeast wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and thunderstorms likely before 7pm, then showers and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Some of the storms could produce heavy rainfall. Low around 63. South southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday
Mostly cloudy, with a high near 75. North wind around 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 56. North wind 5 to 8 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 77. North northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
A chance of showers. 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
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SE Charleston IL
 39.41°N 88.11°W (Elev. 659 ft)
Last Update:
8:36 am CDT Jun 20, 2026
Forecast Valid:
10am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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