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

8°F

-13°C

Humidity 63%
Wind Speed Calm
Barometer 30.36 in (1029.8 mb)
Dewpoint -2°F (-19°C)
Visibility 10.00 mi
Last update 19 Jan 7:53 pm CST
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Mostly cloudy, then gradual clearing toward daybreak, with a low around 7. Wind chill values between -3 and 2. West wind 3 to 6 mph.

    Low: 7 °F

    Clearing Late

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Wind chill values between -3 and 7. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a temperature rising to around 31 by 5am. South wind 8 to 18 mph, with gusts as high as 31 mph.

    Low: 24 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 41. West southwest wind 8 to 18 mph, with gusts as high as 31 mph.

    High: 41 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 21. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 21 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 31. West northwest wind 5 to 10 mph, with gusts as high as 16 mph.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. Light west northwest wind becoming north northwest 6 to 11 mph in the evening. Winds could gust as high as 18 mph.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 12.

    High: 12 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -2.

    Low: -2 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, then gradual clearing toward daybreak, with a low around 7. Wind chill values between -3 and 2. West wind 3 to 6 mph.
Tuesday
Mostly sunny, with a high near 30. Wind chill values between -3 and 7. South southwest wind 6 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a temperature rising to around 31 by 5am. South wind 8 to 18 mph, with gusts as high as 31 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 41. West southwest wind 8 to 18 mph, with gusts as high as 31 mph.
Wednesday Night
Partly cloudy, with a low around 21. West southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 31. West northwest wind 5 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Mostly cloudy, with a low around 6. Light west northwest wind becoming north northwest 6 to 11 mph in the evening. Winds could gust as high as 18 mph.
Friday
Mostly cloudy, with a high near 12.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
Mostly cloudy, with a high near 11.
Saturday Night
Mostly cloudy, with a low around 1.
Sunday
Mostly sunny, with a high near 18.
Sunday Night
Partly cloudy, with a low around 6.
Monday
Sunny, with a high near 27.
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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:
8:37 pm CST Jan 19, 2026
Forecast Valid:
8pm CST Jan 19, 2026-6pm CST Jan 26, 2026
 
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