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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mattoon/Charleston, Coles County Memorial Airport IL

Frost Advisory April 20, 06:19am until April 20, 08:00am
Click here for hazard details and duration
...
  •  
    Frost Advisory April 20, 06:19am until April 20, 08:00am

    NOW until 8:00am Mon

    Frost Advisory

  • Today

    High: 61 °F

    Areas Frost
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. South southeast wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.

    High: 76 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am. Partly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.

    Low: 57 °F

    Mostly Clear
    then Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 76. West southwest wind around 10 mph, with gusts as high as 17 mph.

    High: 76 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. South wind 6 to 8 mph, with gusts as high as 15 mph.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 78. South wind 9 to 17 mph, with gusts as high as 29 mph.

    High: 78 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Areas of frost before 8am. Otherwise, sunny, with a high near 61. Calm wind becoming south southwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 46. South southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 76. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 57. Southwest wind 10 to 13 mph, with gusts as high as 23 mph.
Wednesday
Mostly sunny, with a high near 76. West southwest wind around 10 mph, with gusts as high as 17 mph.
Wednesday Night
Mostly clear, with a low around 56. South wind 6 to 8 mph, with gusts as high as 15 mph.
Thursday
Mostly sunny, with a high near 78. South wind 9 to 17 mph, with gusts as high as 29 mph.
Thursday Night
A 50 percent chance of showers after 1am. Mostly cloudy, with a low around 61.
Friday
Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Friday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A chance of showers. Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mattoon/Charleston, Coles County Memorial Airport IL
 39.46°N 88.28°W (Elev. 679 ft)
Last Update:
4:37 am CDT Apr 20, 2026
Forecast Valid:
6am CDT Apr 20, 2026-6pm CDT Apr 26, 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