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.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed S 6 mph
Barometer 30.06 in (1018.0 mb)
Dewpoint 48°F (9°C)
Visibility 4.00 mi
Wind Chill46°F (8°C)
Last update 20 Nov 5:53 pm CST
Extended Forecast for

5 Miles S Sullivan IL

  • Tonight

    Tonight: Rain likely, mainly after 5am. Patchy fog after 8pm. Otherwise, cloudy, with a low around 50. Light east southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Rain Likely
    and Patchy
    Fog

  • Friday

    Friday: Rain likely. Patchy fog before noon. Otherwise, cloudy, with a high near 54. East northeast wind 5 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Rain Likely
    and Patchy
    Fog

  • Friday Night

    Friday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 39. North northeast wind 6 to 8 mph.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 53. North wind around 6 mph becoming calm in the afternoon.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35. Light southwest wind.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 58. West southwest wind 3 to 6 mph.

    High: 58 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 41. Calm wind becoming south southeast around 5 mph after midnight.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: A 50 percent chance of rain. Mostly cloudy, with a high near 56.

    High: 56 °F

    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Rain

Detailed Forecast

Tonight
Rain likely, mainly after 5am. Patchy fog after 8pm. Otherwise, cloudy, with a low around 50. Light east southeast wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain likely. Patchy fog before noon. Otherwise, cloudy, with a high near 54. East northeast wind 5 to 9 mph, with gusts as high as 17 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 39. North northeast wind 6 to 8 mph.
Saturday
Sunny, with a high near 53. North wind around 6 mph becoming calm in the afternoon.
Saturday Night
Mostly clear, with a low around 35. Light southwest wind.
Sunday
Sunny, with a high near 58. West southwest wind 3 to 6 mph.
Sunday Night
Mostly cloudy, with a low around 41. Calm wind becoming south southeast around 5 mph after midnight.
Monday
A 50 percent chance of rain. Mostly cloudy, with a high near 56.
Monday Night
Rain. Low around 47. Chance of precipitation is 80%.
Tuesday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 59.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 45.
Wednesday Night
Partly cloudy, with a low around 28.
Thanksgiving Day
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Sullivan IL
 39.52°N 88.59°W (Elev. 617 ft)
Last Update:
3:16 pm CST Nov 20, 2025
Forecast Valid:
6pm CST Nov 20, 2025-6pm CST Nov 27, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation