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.

A Few Clouds

27°F

-3°C

Humidity 53%
Wind Speed W 18 G 24 mph
Barometer 30.21 in (1023.6 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill14°F (-10°C)
Last update 22 Jan 12:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: Partly cloudy, with a low around 20. West northwest wind 13 to 18 mph decreasing to 7 to 12 mph. Winds could gust as high as 29 mph.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 33. West wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 33 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. West southwest wind 6 to 16 mph becoming north after midnight. Winds could gust as high as 24 mph.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 11. Wind chill values between -7 and -14. North wind 13 to 17 mph, with gusts as high as 24 mph.

    High: 11 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 0. North northeast wind around 11 mph, with gusts as high as 20 mph.

    Low: 0 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of snow after noon. Cloudy, with a high near 13. Northeast wind around 11 mph, with gusts as high as 20 mph.

    High: 13 °F

    Cloudy then
    Chance Snow

  • Saturday Night

    Saturday Night: Snow likely. Cloudy, with a low around 7. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.

    Low: 7 °F

    Snow Likely

  • Sunday

    Sunday: Snow likely, mainly before noon. Mostly cloudy, with a high near 16. Chance of precipitation is 60%.

    High: 16 °F

    Snow Likely
    then Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 20. West northwest wind 13 to 18 mph decreasing to 7 to 12 mph. Winds could gust as high as 29 mph.
Thursday
Partly sunny, with a high near 33. West wind 7 to 10 mph, with gusts as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 4. Wind chill values between -10 and zero. West southwest wind 6 to 16 mph becoming north after midnight. Winds could gust as high as 24 mph.
Friday
Mostly cloudy, with a high near 11. Wind chill values between -7 and -14. North wind 13 to 17 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 0. North northeast wind around 11 mph, with gusts as high as 20 mph.
Saturday
A 50 percent chance of snow after noon. Cloudy, with a high near 13. Northeast wind around 11 mph, with gusts as high as 20 mph.
Saturday Night
Snow likely. Cloudy, with a low around 7. Northeast wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%.
Sunday
Snow likely, mainly before noon. Mostly cloudy, with a high near 16. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around -1.
Monday
Mostly sunny, with a high near 11.
Monday Night
Mostly clear, with a low around 1.
Tuesday
Mostly sunny, with a high near 22.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
Partly sunny, with a high near 22.
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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:
12:36 am CST Jan 22, 2026
Forecast Valid:
1am CST Jan 22, 2026-6pm CST Jan 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation