Heat Wave Expands to the East Coast; Flash Flooding Likely in the Central Plains into the Midwest; Severe Thunderstorms in the Northeast

Dangerous, prolonged heat is ongoing in the Mid-South to Mid-Mississippi Valley and heat expands into the Northeast for a brief period today. Widely scattered instances of flash flooding due to heavy rains are forecast from northeast Kansas to much of Indiana. Scattered strong to severe thunderstorms are possible across parts of New England, northern Mid-Atlantic, and North Dakota. Read More >

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

76°F

24°C

Humidity 97%
Wind Speed S 3 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 27 Jul 2:52 am CDT
Extended Forecast for

Du Quoin IL

Extreme Heat Watch July 28, 12:00pm until July 30, 08:00pm
Heat Advisory July 27, 03:39am until July 28, 12:00pm
Click here for hazard details and duration
Extreme Heat Watch
Heat Advisory
  •  
    Heat Advisory July 27, 03:39am until July 28, 12:00pm

    NOW until 12:00pm Mon

    Heat Advisory

  • Overnight

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm.  Partly sunny, with a high near 93. Heat index values as high as 106. South southwest wind 6 to 8 mph.

    High: 93 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 76. South wind 3 to 6 mph.

    Low: 76 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 96. Heat index values as high as 109. West wind 3 to 6 mph.

    High: 96 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Light and variable wind.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Light and variable wind.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 1pm.  Sunny, with a high near 96. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 96 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Overnight
Partly cloudy, with a low around 76. South southwest wind around 5 mph.
Sunday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 93. Heat index values as high as 106. South southwest wind 6 to 8 mph.
Sunday Night
Mostly cloudy, with a low around 76. South wind 3 to 6 mph.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 96. Heat index values as high as 109. West wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 77. Light and variable wind.
Tuesday
Sunny and hot, with a high near 98. Light and variable wind.
Tuesday Night
Mostly clear, with a low around 76. Calm wind.
Wednesday
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 96. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Northeast wind 3 to 6 mph.
Thursday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86. Northeast wind 6 to 10 mph.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Northeast wind 7 to 10 mph.
Friday
Mostly sunny, with a high near 83. Northeast wind 8 to 13 mph, with gusts as high as 18 mph.
Friday Night
Partly cloudy, with a low around 64. Northeast wind 6 to 10 mph.
Saturday
Mostly sunny, with a high near 83. Northeast wind 6 to 9 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Du Quoin IL
 38.01°N 89.24°W
2:00 am CDT Jul 27, 2025
3am CDT Jul 27, 2025-6pm CDT Aug 2, 2025
 
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Additional Resources

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