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Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fair

64°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 29.97 in (1014.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 20 Jun 10:53 pm CDT
Extended Forecast for

7 Miles E Sullivan IL

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

  • Tonight

    Tonight: Mostly cloudy, with a low around 61. Light east southeast wind.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms, mainly after 11am. Some of the storms could produce heavy rainfall. High near 78. East southeast wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 78 °F

    Heavy Rain

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 62. South southeast wind 9 to 15 mph becoming west 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: 62 °F

    T-storms then
    Chance
    T-storms

  • Monday

    Monday: Mostly cloudy, with a high near 73. North wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 73 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 55. North northeast wind 5 to 9 mph, with gusts as high as 15 mph.

    Low: 55 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 77. North northeast wind around 6 mph becoming calm in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 61. Light east southeast wind.
Sunday
Showers and thunderstorms, mainly after 11am. Some of the storms could produce heavy rainfall. High near 78. East southeast wind 6 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 62. South southeast wind 9 to 15 mph becoming west 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 73. North wind 10 to 13 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 55. North northeast wind 5 to 9 mph, with gusts as high as 15 mph.
Tuesday
Sunny, with a high near 77. North northeast wind around 6 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. Light and variable wind.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
Mostly sunny, with a high near 78.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Saturday
A chance of showers. Partly sunny, with a high near 82.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles E Sullivan IL
 39.6°N 88.47°W (Elev. 659 ft)
Last Update:
8:11 pm CDT Jun 20, 2026
Forecast Valid:
11pm CDT Jun 20, 2026-6pm CDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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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