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

47°F

8°C

Humidity 90%
Wind Speed N 7 mph
Barometer 29.95 in (1014.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 27 Dec 12:53 am CST
Extended Forecast for

3 Miles SSE Mattoon IL

Dense Fog Advisory until December 27, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until December 27, 10:00am

    NOW until 10:00am Sat

    Dense Fog Advisory

  • Overnight

    Low: 43 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 56. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 56 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Saturday Night

    Saturday Night: A chance of rain between midnight and 3am, then a chance of rain and thunderstorms after 3am. Cloudy, with a low around 54. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 54 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain. High near 68. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 68 °F

    Rain Likely
    then Rain

  • Sunday Night

    Sunday Night: Rain likely before midnight. Mostly cloudy, with a low around 18. Blustery, with a west northwest wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 18 °F

    Blustery.
    Rain Likely
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23. Blustery, with a west northwest wind 21 to 28 mph, with gusts as high as 38 mph.

    High: 23 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. West northwest wind 13 to 18 mph, with gusts as high as 25 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 29.

    High: 29 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a low around 43. Calm wind becoming east northeast around 5 mph.
Saturday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 56. Southeast wind 5 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A chance of rain between midnight and 3am, then a chance of rain and thunderstorms after 3am. Cloudy, with a low around 54. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Sunday
Rain. High near 68. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain likely before midnight. Mostly cloudy, with a low around 18. Blustery, with a west northwest wind 17 to 22 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 23. Blustery, with a west northwest wind 21 to 28 mph, with gusts as high as 38 mph.
Monday Night
Mostly clear, with a low around 14. West northwest wind 13 to 18 mph, with gusts as high as 25 mph.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 23.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 14.
New Year's Day
Mostly sunny, with a high near 23.
Thursday Night
Mostly clear, with a low around 9.
Friday
Mostly sunny, with a high near 24.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSE Mattoon IL
 39.44°N 88.36°W (Elev. 768 ft)
Last Update:
11:42 pm CST Dec 26, 2025
Forecast Valid:
1am CST Dec 27, 2025-6pm CST Jan 2, 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