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

30°F

-1°C

Humidity 92%
Wind Speed Calm
Barometer 30.25 in (1024.8 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 13 Feb 7:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Sunny, with a high near 58. Light south southeast wind becoming south 5 to 9 mph in the morning.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 37. South wind 3 to 6 mph.

    Low: 37 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Rain, mainly after noon. High near 55. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 80%.

    High: 55 °F

    Chance Rain
    then Rain

  • Saturday Night

    Saturday Night: Rain. Low around 46. East southeast wind around 7 mph. Chance of precipitation is 100%.

    Low: 46 °F

    Rain

  • Sunday

    Sunday: Rain likely, mainly before noon. Mostly cloudy, with a high near 55. North northeast wind 7 to 10 mph. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. North northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 61. Calm wind becoming south southeast around 5 mph.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 44. Calm wind becoming south around 6 mph after midnight.

    Low: 44 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 65. South wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 65 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 58. Light south southeast wind becoming south 5 to 9 mph in the morning.
Tonight
Increasing clouds, with a low around 37. South wind 3 to 6 mph.
Saturday
Rain, mainly after noon. High near 55. Calm wind becoming east southeast 5 to 7 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Rain. Low around 46. East southeast wind around 7 mph. Chance of precipitation is 100%.
Sunday
Rain likely, mainly before noon. Mostly cloudy, with a high near 55. North northeast wind 7 to 10 mph. Chance of precipitation is 60%.
Sunday Night
Partly cloudy, with a low around 39. North northeast wind 5 to 7 mph becoming calm in the evening.
Washington's Birthday
Mostly sunny, with a high near 61. Calm wind becoming south southeast around 5 mph.
Monday Night
Mostly cloudy, with a low around 44. Calm wind becoming south around 6 mph after midnight.
Tuesday
Mostly cloudy, with a high near 65. South wind 6 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly cloudy, with a low around 56. South southwest wind around 15 mph, with gusts as high as 25 mph.
Wednesday
Mostly cloudy, with a high near 72. Southwest wind 13 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
A slight chance of rain. Mostly cloudy, with a low around 52. South southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 68. South southwest wind 9 to 13 mph, with gusts as high as 21 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
4:42 am CST Feb 13, 2026
Forecast Valid:
8am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
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Additional Resources

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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