National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Overcast

40°F

4°C

Humidity 93%
Wind Speed W 10 mph
Barometer 29.85 in (1011.2 mb)
Dewpoint 38°F (3°C)
Visibility 7.00 mi
Wind Chill34°F (1°C)
Last update 7 Jan 12:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 34. West northwest wind 5 to 7 mph.

    Low: 34 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind becoming south southwest 5 to 8 mph in the morning.

    High: 53 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 40. South wind 7 to 10 mph, with gusts as high as 17 mph.

    Low: 40 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Rain likely after noon. Cloudy, with a high near 62. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Mostly Cloudy
    then Rain
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: Rain, mainly before midnight. Low around 53. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 53 °F

    Breezy. Rain
    then Chance
    Rain

  • Friday

    Friday: Partly sunny, with a high near 59. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41. North northeast wind 6 to 8 mph.

    Low: 41 °F

    Mostly Cloudy
    then Chance
    Rain

  • Saturday

    Saturday: A 30 percent chance of rain before noon. Partly sunny, with a high near 46.

    High: 46 °F

    Chance Rain
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 34. West northwest wind 5 to 7 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind becoming south southwest 5 to 8 mph in the morning.
Wednesday Night
Increasing clouds, with a low around 40. South wind 7 to 10 mph, with gusts as high as 17 mph.
Thursday
Rain likely after noon. Cloudy, with a high near 62. Breezy, with a south southeast wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain, mainly before midnight. Low around 53. Breezy, with a south southwest wind 15 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Partly sunny, with a high near 59. Southwest wind 7 to 13 mph becoming north northwest in the afternoon. Winds could gust as high as 22 mph.
Friday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 41. North northeast wind 6 to 8 mph.
Saturday
A 30 percent chance of rain before noon. Partly sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly sunny, with a high near 31.
Sunday Night
Mostly clear, with a low around 20.
Monday
Sunny, with a high near 40.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 45.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
1:22 am CST Jan 7, 2026
Forecast Valid:
1am CST Jan 7, 2026-6pm CST Jan 13, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation