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

4°F

-16°C

Humidity 83%
Wind Speed Calm
Barometer 30.29 in (1027.0 mb)
Dewpoint 0°F (-18°C)
Visibility 10.00 mi
Last update 29 Jan 6:53 am CST
Extended Forecast for

5 Miles NE Sullivan IL

  • Today

    Today: Mostly cloudy, with a high near 17. Wind chill values between -8 and 2. North wind around 6 mph.

    High: 17 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around -3. Wind chill values between -9 and -14. North wind around 6 mph.

    Low: -3 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 13. Wind chill values between -5 and -15. North wind 6 to 9 mph.

    High: 13 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 0. Wind chill values between -5 and -15. North wind 7 to 11 mph, with gusts as high as 18 mph.

    Low: 0 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 17. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 17 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 1. West northwest wind 5 to 8 mph.

    Low: 1 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 21. West wind 5 to 8 mph becoming south in the afternoon.

    High: 21 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 29.

    High: 29 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 17. Wind chill values between -8 and 2. North wind around 6 mph.
Tonight
Mostly cloudy, with a low around -3. Wind chill values between -9 and -14. North wind around 6 mph.
Friday
Mostly sunny, with a high near 13. Wind chill values between -5 and -15. North wind 6 to 9 mph.
Friday Night
Partly cloudy, with a low around 0. Wind chill values between -5 and -15. North wind 7 to 11 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 17. Northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 1. West northwest wind 5 to 8 mph.
Sunday
Mostly sunny, with a high near 21. West wind 5 to 8 mph becoming south in the afternoon.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 12.
Monday
Mostly cloudy, with a high near 29.
Monday Night
Mostly cloudy, with a low around 15.
Tuesday
Mostly cloudy, with a high near 30.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 18.
Wednesday
A chance of snow. Mostly cloudy, with a high near 29.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NE Sullivan IL
 39.65°N 88.52°W (Elev. 650 ft)
Last Update:
6:37 am CST Jan 29, 2026
Forecast Valid:
7am CST Jan 29, 2026-6pm CST Feb 4, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation