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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

76°F

24°C

Humidity 94%
Wind Speed S 3 mph
Barometer 30.03 in (1016.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 2 Jul 1:52 am CDT
Extended Forecast for

Carbondale IL

Extreme Heat Warning July 2, 02:42am until July 3, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 02:42am until July 3, 08:00pm

    NOW until 8:00pm Fri

    Extreme Heat Warning

  • Overnight

    Low: 75 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.

    High: 96 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Light and variable wind.

    Low: 77 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 96. Heat index values as high as 109. Calm wind becoming south around 6 mph in the afternoon.

    High: 96 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 76. Light and variable wind.

    Low: 76 °F

    Mostly Clear

  • Independence Day

    Independence Day: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 40%.

    High: 96 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 75. Calm wind.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.
Thursday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Light and variable wind.
Friday
Sunny, with a high near 96. Heat index values as high as 109. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 76. Light and variable wind.
Independence Day
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind becoming south southwest around 5 mph in the afternoon. Chance of precipitation is 40%.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Light and variable wind. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind.
Sunday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Calm wind.
Monday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Light and variable wind.
Monday Night
Partly cloudy, with a low around 73. Light north wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Light west northwest wind.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 72. Calm wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Light and variable wind.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
1:26 am CDT Jul 2, 2026
Forecast Valid:
2am CDT Jul 2, 2026-6pm CDT Jul 8, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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