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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Carbondale/Murphysboro, Southern Illinois Airport IL

Heat Advisory September 20, 02:21am until September 20, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 20, 02:21am until September 20, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • Overnight

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 95. West wind 5 to 8 mph.

    High: 95 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. Light north northeast wind.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. North wind 5 to 9 mph. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 62. North wind 6 to 10 mph.

    Low: 62 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. North wind 9 to 13 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 56. North wind 7 to 13 mph.

    Low: 56 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. North wind 9 to 13 mph.

    High: 74 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 76. South southwest wind around 6 mph.
Sunday
Mostly sunny, with a high near 95. West wind 5 to 8 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69. Light north northeast wind.
Monday
A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. North wind 5 to 9 mph. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 62. North wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 75. North wind 9 to 13 mph.
Tuesday Night
Partly cloudy, with a low around 56. North wind 7 to 13 mph.
Wednesday
Mostly sunny, with a high near 74. North wind 9 to 13 mph.
Wednesday Night
Mostly clear, with a low around 54. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 75. North wind 3 to 8 mph.
Thursday Night
Partly cloudy, with a low around 56. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 76. Calm wind becoming northeast 5 to 8 mph in the morning.
Friday Night
Partly cloudy, with a low around 54. Light north northeast wind.
Saturday
Partly sunny, with a high near 77. Calm wind becoming east northeast around 6 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
 37.79°N 89.25°W
Last Update:
1:26 am CDT Sep 20, 2026
Forecast Valid:
2am CDT Sep 20, 2026-6pm CDT Sep 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation