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

75°F

24°C

Humidity 94%
Wind Speed SE 6 mph
Barometer 30.03 in (1016.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 18 Aug 2:53 am CDT
Extended Forecast for

4 Miles SE Gays IL

Heat Advisory August 18, 03:40am until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 18, 03:40am until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • Overnight

    Low: 72 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91. Heat index values as high as 101. South southeast wind 3 to 5 mph.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85. North northeast wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. North northeast wind 5 to 7 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 72. Calm wind.
Monday
Mostly sunny, with a high near 91. Heat index values as high as 101. South southeast wind 3 to 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. Calm wind.
Tuesday
A chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 89. Calm wind becoming southwest around 5 mph. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 70. Calm wind.
Wednesday
Mostly sunny, with a high near 85. North northeast wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 63. North northeast wind 5 to 7 mph.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 63.
Saturday
Sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SE Gays IL
 39.4°N 88.45°W (Elev. 669 ft)
Last Update:
3:25 am CDT Aug 18, 2025
Forecast Valid:
3am CDT Aug 18, 2025-6pm CDT Aug 24, 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