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

54°F

12°C

Humidity 93%
Wind Speed SE 10 mph
Barometer 29.62 in (1002.9 mb)
Dewpoint 52°F (11°C)
Visibility 8.00 mi
Wind Chill51°F (11°C)
Last update 19 Feb 2:53 am CST
Extended Forecast for

Charleston IL

  • Overnight

    Overnight: A 30 percent chance of showers, mainly before 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 48. South wind around 8 mph.

    Low: 48 °F

    Chance
    Showers and
    Areas Fog

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Areas of fog before 10am. High near 64. South wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 64 °F

    Slight Chance
    Showers and
    Areas Fog
    then T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 35. Breezy, with a south wind 9 to 14 mph becoming west southwest 16 to 21 mph after midnight. Winds could gust as high as 38 mph.

    Low: 35 °F

    Chance
    Showers then
    Partly Cloudy
    and Breezy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 45 °F

    Decreasing
    Clouds and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 27. Northwest wind 5 to 7 mph.

    Low: 27 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 43. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 23. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.

    Low: 23 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 20.

    Low: 20 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers, mainly before 4am. Areas of fog. Otherwise, mostly cloudy, with a low around 48. South wind around 8 mph.
Thursday
Showers and thunderstorms, mainly before 4pm, then showers likely and possibly a thunderstorm after 4pm. Areas of fog before 10am. High near 64. South wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
A 30 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 35. Breezy, with a south wind 9 to 14 mph becoming west southwest 16 to 21 mph after midnight. Winds could gust as high as 38 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 45. Breezy, with a west wind 17 to 22 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 37 mph.
Friday Night
Mostly clear, with a low around 27. Northwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 43. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Partly cloudy, with a low around 23. Northwest wind 7 to 14 mph, with gusts as high as 22 mph.
Sunday
Partly sunny, with a high near 35.
Sunday Night
Partly cloudy, with a low around 20.
Monday
Mostly sunny, with a high near 34.
Monday Night
Partly cloudy, with a low around 18.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 54.
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:
2:36 am CST Feb 19, 2026
Forecast Valid:
3am CST Feb 19, 2026-6pm CST Feb 25, 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