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 and Breezy

24°F

-4°C

Humidity 75%
Wind Speed W 25 G 40 mph
Barometer 29.97 in (1015.7 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill8°F (-13°C)
Last update 16 Mar 6:53 pm CDT
Extended Forecast for

Charleston IL

  • Tonight

    Tonight: Scattered flurries with isolated snow showers before 9pm, then scattered flurries between 9pm and midnight. Mostly cloudy, with a low around 13. Wind chill values between -1 and 9. Blustery, with a west northwest wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    Low: 13 °F

    Blustery.
    Isolated Snow
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 28. Wind chill values between -2 and 8. West northwest wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 28 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 1am. Mostly cloudy, with a low around 24. Light south southwest wind becoming south southeast 9 to 14 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Cloudy through mid morning, then gradual clearing, with a high near 53. Southwest wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 53 °F

    Gradual
    Clearing

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 37. South southwest wind around 6 mph.

    Low: 37 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 64. South wind around 7 mph.

    High: 64 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 43. Southeast wind around 6 mph.

    Low: 43 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Scattered flurries with isolated snow showers before 9pm, then scattered flurries between 9pm and midnight. Mostly cloudy, with a low around 13. Wind chill values between -1 and 9. Blustery, with a west northwest wind 14 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Tuesday
Partly sunny, with a high near 28. Wind chill values between -2 and 8. West northwest wind 7 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 24. Light south southwest wind becoming south southeast 9 to 14 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 53. Southwest wind 11 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Partly cloudy, with a low around 37. South southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 64. South wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 43. Southeast wind around 6 mph.
Friday
Mostly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
Mostly sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Mostly sunny, with a high near 67.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Partly sunny, with a high near 50.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Charleston IL
 39.5°N 88.19°W (Elev. 650 ft)
Last Update:
6:46 pm CDT Mar 16, 2026
Forecast Valid:
7pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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