Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

Fog/Mist

67°F

19°C

Humidity 100%
Wind Speed N 5 mph
Barometer 30.04 in (1016.7 mb)
Dewpoint 67°F (19°C)
Visibility 4.00 mi
Last update 14 Jul 12:53 am CDT
Extended Forecast for

Mattoon IL

Dense Fog Advisory until July 14, 10:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until July 14, 10:00am

    NOW until 10:00am Mon

    Dense Fog Advisory

  • Overnight

    Low: 68 °F

    Areas Dense
    Fog

  • Monday

    Monday: Areas of dense fog before 8am.  Otherwise, mostly sunny, with a high near 85. Light and variable wind.

    High: 85 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.

    High: 87 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Mostly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 88. South southwest wind 5 to 7 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 72. South southwest wind around 6 mph.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Areas of dense fog. Otherwise, mostly cloudy, with a low around 68. Calm wind.
Monday
Areas of dense fog before 8am. Otherwise, mostly sunny, with a high near 85. Light and variable wind.
Monday Night
Partly cloudy, with a low around 70. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 71. Light south wind.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88. South southwest wind 5 to 7 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. South southwest wind around 6 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 88.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 40%.
Friday
A 40 percent chance of showers after 1pm. Partly sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 69.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 86.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
Mattoon IL
 39.49°N 88.39°W (Elev. 732 ft)
12:26 am CDT Jul 14, 2025
1am CDT Jul 14, 2025-6pm CDT Jul 20, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database