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

76°F

24°C

Humidity 82%
Wind Speed S 5 mph
Barometer 30.02 in (1015.7 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 1 Sep 1:53 am CDT
Extended Forecast for

Arcola IL

Heat Advisory September 1, 02:35am until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 02:35am until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Overnight

    Low: 73 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 103. West southwest wind 7 to 10 mph, with gusts as high as 17 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. South wind 3 to 7 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Heat index values as high as 103. Southwest wind 7 to 10 mph, with gusts as high as 16 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. South southwest wind 5 to 7 mph.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Southwest wind 5 to 8 mph.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South wind 3 to 5 mph.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

Overnight
Mostly clear, with a low around 73. South southwest wind around 8 mph, with gusts as high as 15 mph.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 103. West southwest wind 7 to 10 mph, with gusts as high as 17 mph.
Tuesday Night
Mostly clear, with a low around 75. South wind 3 to 7 mph.
Wednesday
Sunny and hot, with a high near 98. Heat index values as high as 103. Southwest wind 7 to 10 mph, with gusts as high as 16 mph.
Wednesday Night
Mostly clear, with a low around 76. South southwest wind 5 to 7 mph.
Thursday
Sunny and hot, with a high near 97. Southwest wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 75. South wind 3 to 5 mph.
Friday
Sunny and hot, with a high near 96.
Friday Night
Mostly clear, with a low around 73.
Saturday
Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 67.
Labor Day
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arcola IL
 39.69°N 88.32°W (Elev. 673 ft)
Last Update:
2:01 am CDT Sep 1, 2026
Forecast Valid:
2am CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
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