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.

Overcast

16°F

-9°C

Humidity 59%
Wind Speed S 7 mph
Barometer 30.43 in (1031.9 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 20 Jan 8:53 am CST
Extended Forecast for

Charleston IL

  • Today

    Today: Mostly sunny, with a high near 28. Wind chill values between -1 and 9. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 28 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. South wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 23 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 41. Southwest wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 41 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 20. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.

    Low: 20 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 32. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.

    High: 32 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 7. Light west northwest wind becoming north northwest 5 to 9 mph in the evening. Winds could gust as high as 16 mph.

    Low: 7 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 12. North wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 12 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 13.

    High: 13 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Today
Mostly sunny, with a high near 28. Wind chill values between -1 and 9. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 23. South wind 13 to 17 mph, with gusts as high as 28 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 41. Southwest wind 9 to 17 mph, with gusts as high as 29 mph.
Wednesday Night
Partly cloudy, with a low around 20. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 32. West northwest wind 5 to 9 mph, with gusts as high as 18 mph.
Thursday Night
Mostly cloudy, with a low around 7. Light west northwest wind becoming north northwest 5 to 9 mph in the evening. Winds could gust as high as 16 mph.
Friday
Mostly cloudy, with a high near 12. North wind 10 to 13 mph, with gusts as high as 20 mph.
Friday Night
Mostly cloudy, with a low around 1.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 13.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 4.
Sunday
Mostly sunny, with a high near 20.
Sunday Night
Partly cloudy, with a low around 4.
Monday
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:
6:36 am CST Jan 20, 2026
Forecast Valid:
9am CST Jan 20, 2026-6pm CST Jan 26, 2026
 
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Additional Resources

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Chance of Precipitation