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 and Breezy

12°F

-11°C

Humidity 51%
Wind Speed W 23 G 38 mph
Barometer 30.34 in (1028.5 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-7°F (-22°C)
Last update 19 Jan 10:53 am CST
Extended Forecast for

Sullivan IL

Cold Weather Advisory until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 19, 12:00pm

    NOW until 12:00pm Mon

    Cold Weather Advisory

  • M.L.King Day

    High: 14 °F

    Sunny and
    Blustery

  • Tonight

    Tonight: Increasing clouds, with a low around 7. Wind chill values between -2 and 3. Southwest wind 6 to 9 mph, with gusts as high as 16 mph.

    Low: 7 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 30. Wind chill values between -1 and 9. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 30 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a temperature falling to near 25 by 8pm, then rising to around 32 during the remainder of the night. South wind 8 to 18 mph, with gusts as high as 28 mph.

    Low: 25 °F⇑

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. West wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 19. West wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 19 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 29. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 29 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

M.L.King Day
Sunny, with a high near 14. Wind chill values between -1 and -10. Blustery, with a west northwest wind 13 to 21 mph, with gusts as high as 32 mph.
Tonight
Increasing clouds, with a low around 7. Wind chill values between -2 and 3. Southwest wind 6 to 9 mph, with gusts as high as 16 mph.
Tuesday
Mostly sunny, with a high near 30. Wind chill values between -1 and 9. South southwest wind 6 to 10 mph, with gusts as high as 16 mph.
Tuesday Night
Increasing clouds, with a temperature falling to near 25 by 8pm, then rising to around 32 during the remainder of the night. South wind 8 to 18 mph, with gusts as high as 28 mph.
Wednesday
Mostly sunny, with a high near 40. West wind 9 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 19. West wind 8 to 11 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny, with a high near 29. West northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly cloudy, with a high near 19.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
Partly sunny, with a high near 11.
Saturday Night
Mostly cloudy, with a low around 2.
Sunday
Mostly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sullivan IL
 39.61°N 88.61°W (Elev. 669 ft)
Last Update:
11:36 am CST Jan 19, 2026
Forecast Valid:
11am CST Jan 19, 2026-6pm CST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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