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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

66°F

19°C

Humidity 78%
Wind Speed S 5 mph
Barometer 30.05 in (1017.2 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 5 Jun 12:52 am CDT
Extended Forecast for

Carbondale/Murphysboro, Southern Illinois Airport IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 65. South wind around 7 mph.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 86. South southwest wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 86 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 69. South wind 6 to 14 mph, with gusts as high as 20 mph.

    Low: 69 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 89. South southwest wind 7 to 11 mph.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 71. South southwest wind 6 to 11 mph becoming light south after midnight.

    Low: 71 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Light south southeast wind becoming south 5 to 9 mph in the morning.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday

    Monday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 84. South wind 5 to 9 mph.

    High: 84 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind 3 to 8 mph.

    Low: 70 °F

    Chance
    T-storms then
    Showers
    Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 65. South wind around 7 mph.
Friday
Mostly sunny, with a high near 86. South southwest wind 8 to 15 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 69. South wind 6 to 14 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 89. South southwest wind 7 to 11 mph.
Saturday Night
Mostly cloudy, with a low around 71. South southwest wind 6 to 11 mph becoming light south after midnight.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Light south southeast wind becoming south 5 to 9 mph in the morning.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 71. South wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 84. South wind 5 to 9 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 70. South wind 3 to 8 mph.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. South wind 3 to 8 mph.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind around 6 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind 3 to 7 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 72. South wind around 6 mph becoming calm in the evening.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south southwest around 6 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
 37.79°N 89.25°W
Last Update:
9:26 pm CDT Jun 4, 2026
Forecast Valid:
1am CDT Jun 5, 2026-6pm CDT Jun 11, 2026
 
Forecast Discussion
 
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Additional Resources

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