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 87%
Wind Speed S 3 mph
Barometer 30.18 in (1021.7 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 3 Oct 9:52 pm CDT
Extended Forecast for

2 Miles S Carbondale/Murphysboro, Southern Illinois Airport IL

  • Tonight

    Tonight: Patchy fog after 5am. Otherwise, clear, with a low around 61. Calm wind.

    Low: 61 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Sunny, with a high near 86. Calm wind becoming south southeast 5 to 8 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. South southeast wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South southeast wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 30%.

    High: 83 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. Light southeast wind.

    Low: 63 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 80 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 58. North northeast wind 6 to 8 mph.

    Low: 58 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, clear, with a low around 61. Calm wind.
Saturday
Sunny, with a high near 86. Calm wind becoming south southeast 5 to 8 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 57. South southeast wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 85. Light south southeast wind becoming south 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 64. South southeast wind around 6 mph becoming calm in the evening.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 83. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 30%.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63. Light southeast wind.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 58. North northeast wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 75. Northeast wind 8 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 53. East northeast wind 5 to 7 mph.
Thursday
Mostly sunny, with a high near 75. East wind around 7 mph.
Thursday Night
Mostly clear, with a low around 50. Light east wind.
Friday
Sunny, with a high near 77. Calm wind becoming south southwest around 6 mph in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles S Carbondale/Murphysboro, Southern Illinois Airport IL
 37.77°N 89.26°W
Last Update:
9:01 pm CDT Oct 3, 2025
Forecast Valid:
10pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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