National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Mattoon / Charleston, Coles County Memorial Airport (KMTO)

Lat: 39.48°NLon: 88.28°WElev: 722ft.

A Few Clouds

87°F

31°C

Humidity 72%
Wind Speed S 13 G 20 mph
Barometer 29.99 in (1015.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 29 Jun 1:53 pm CDT
Extended Forecast for

5 Miles SSW Gays IL

Heat Advisory June 29, 01:58pm until July 3, 12:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 29, 01:58pm until July 3, 12:00am

    NOW until 12:00am Fri

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 74. South wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 93. Heat index values as high as 106. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.

    High: 93 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 74. South wind 6 to 8 mph, with gusts as high as 18 mph.

    Low: 74 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. South southwest wind 5 to 9 mph, with gusts as high as 15 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 73. South southwest wind 5 to 8 mph.

    Low: 73 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93. South southwest wind 5 to 8 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. Heat index values as high as 105. South wind 10 to 13 mph, with gusts as high as 21 mph.
Tonight
Partly cloudy, with a low around 74. South wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 93. Heat index values as high as 106. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Tuesday Night
Clear, with a low around 74. South wind 6 to 8 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 94. South southwest wind 5 to 9 mph, with gusts as high as 15 mph.
Wednesday Night
Clear, with a low around 73. South southwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 93. South southwest wind 5 to 8 mph.
Thursday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73.
Friday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Friday Night
Partly cloudy, with a low around 72.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Gays IL
 39.38°N 88.51°W (Elev. 636 ft)
Last Update:
1:51 pm CDT Jun 29, 2026
Forecast Valid:
1pm CDT Jun 29, 2026-6pm CDT Jul 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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