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.

Fair

74°F

23°C

Humidity 34%
Wind Speed S 13 mph
Barometer 30.16 in (1020.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 9 Apr 5:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: A 10 percent chance of showers after 5am. Partly cloudy, with a low around 57. South wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 67. Southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 42. Northeast wind around 7 mph.

    Low: 42 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. Southeast wind around 8 mph, with gusts as high as 15 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 56. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 78. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 78 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely after 1am. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 62 °F

    Mostly Cloudy
    then Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 10 percent chance of showers after 5am. Partly cloudy, with a low around 57. South wind 9 to 13 mph, with gusts as high as 24 mph.
Friday
Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 67. Southwest wind 10 to 14 mph becoming north northwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 42. Northeast wind around 7 mph.
Saturday
Partly sunny, with a high near 66. Southeast wind around 8 mph, with gusts as high as 15 mph.
Saturday Night
Mostly cloudy, with a low around 56. Southeast wind 6 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly cloudy, with a high near 78. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 34 mph.
Sunday Night
Showers likely after 1am. Mostly cloudy, with a low around 62. South southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Chance of precipitation is 50%.
Monday Night
Mostly cloudy, with a low around 66.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly cloudy, with a high near 79.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 56.
Thursday
A chance of showers. Partly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
4:36 pm CDT Apr 9, 2026
Forecast Valid:
6pm CDT Apr 9, 2026-6pm CDT Apr 16, 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