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

49°F

9°C

Humidity 100%
Wind Speed Calm
Barometer 29.98 in (1015.1 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 7 Oct 1:52 am CDT
Extended Forecast for

3 Miles SW Carbondale IL

  • Overnight

    Overnight: Clear, with a low around 49. Calm wind.

    Low: 49 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 85. Southwest wind 3 to 7 mph.

    High: 85 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58. South southwest wind around 5 mph becoming calm in the evening.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming northeast around 5 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. Calm wind becoming south southeast around 6 mph in the morning.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Light southeast wind.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers after 1pm. Mostly sunny, with a high near 82. Light south wind becoming south southeast 5 to 9 mph in the morning.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 59. East northeast wind around 7 mph.

    Low: 59 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Overnight
Clear, with a low around 49. Calm wind.
Wednesday
Sunny, with a high near 85. Southwest wind 3 to 7 mph.
Wednesday Night
Clear, with a low around 58. South southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming northeast around 5 mph.
Thursday Night
Clear, with a low around 56. Calm wind.
Friday
Sunny, with a high near 85. Calm wind becoming south southeast around 6 mph in the morning.
Friday Night
Mostly clear, with a low around 59. Light southeast wind.
Saturday
A chance of showers after 1pm. Mostly sunny, with a high near 82. Light south wind becoming south southeast 5 to 9 mph in the morning.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 59. East northeast wind around 7 mph.
Sunday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 76. Northeast wind around 10 mph becoming north northwest in the afternoon.
Sunday Night
Partly cloudy, with a low around 57. Light and variable wind.
Columbus Day
Mostly sunny, with a high near 81. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 59. South wind 3 to 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 81. Southwest wind 5 to 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Carbondale IL
 37.7°N 89.26°W
Last Update:
1:26 am CDT Oct 7, 2026
Forecast Valid:
2am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
 
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