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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

58°F

14°C

Humidity 56%
Wind Speed S 10 mph
Barometer 30.03 in (1017.1 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 16 Feb 4:52 pm CST
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43. South wind around 7 mph.

    Low: 43 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 60. South wind 7 to 17 mph, with gusts as high as 31 mph.

    High: 60 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 58. Breezy, with a south wind 17 to 22 mph, with gusts as high as 32 mph.

    Low: 58 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Southwest wind 9 to 18 mph, with gusts as high as 29 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Mostly clear, with a low around 55. South wind 6 to 8 mph.

    Low: 55 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after noon. Mostly sunny, with a high near 72. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    High: 72 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers before midnight. Mostly clear, with a low around 42. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 56. West wind 7 to 11 mph, with gusts as high as 20 mph.

    High: 56 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers. Partly cloudy, with a low around 35. North northwest wind 3 to 6 mph.

    Low: 35 °F

    Slight Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 43. South wind around 7 mph.
Tuesday
Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 60. South wind 7 to 17 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly cloudy, with a low around 58. Breezy, with a south wind 17 to 22 mph, with gusts as high as 32 mph.
Wednesday
Mostly sunny, with a high near 73. Southwest wind 9 to 18 mph, with gusts as high as 29 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly clear, with a low around 55. South wind 6 to 8 mph.
Thursday
Showers likely, mainly after noon. Mostly sunny, with a high near 72. South wind 6 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers before midnight. Mostly clear, with a low around 42. West wind 10 to 14 mph, with gusts as high as 22 mph.
Friday
Mostly sunny, with a high near 56. West wind 7 to 11 mph, with gusts as high as 20 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 35. North northwest wind 3 to 6 mph.
Saturday
A slight chance of showers after noon. Mostly sunny, with a high near 51. North wind 3 to 8 mph.
Saturday Night
A chance of showers. Partly cloudy, with a low around 31. North wind around 7 mph.
Sunday
Sunny, with a high near 44. Northwest wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 23. North northwest wind 5 to 7 mph.
Monday
Mostly sunny, with a high near 43. North northwest wind 5 to 7 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
5:12 pm CST Feb 16, 2026
Forecast Valid:
5pm CST Feb 16, 2026-6pm CST Feb 23, 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