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.

Fair

80°F

27°C

Humidity 90%
Wind Speed SE 7 mph
Barometer 30.00 in (1015.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 26 Jul 8:53 pm CDT
Extended Forecast for

3 Miles E Trilla IL

Heat Advisory July 26, 09:50pm until July 27, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory July 26, 09:50pm until July 27, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Tonight

    Low: 74 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 88. Heat index values as high as 100. West southwest wind around 7 mph.

    High: 88 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Light and variable wind.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 74. South southwest wind around 7 mph. Chance of precipitation is 20%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly after 7am. Partly sunny, with a high near 88. Heat index values as high as 100. West southwest wind around 7 mph.
Sunday Night
Mostly cloudy, with a low around 73. Calm wind.
Monday
Mostly sunny, with a high near 92. Heat index values as high as 105. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75. Calm wind.
Tuesday
Sunny, with a high near 93. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 74. Calm wind.
Wednesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A 30 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 59.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Trilla IL
 39.38°N 88.31°W (Elev. 669 ft)
Last Update:
9:42 pm CDT Jul 26, 2025
Forecast Valid:
9pm CDT Jul 26, 2025-6pm CDT Aug 2, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation