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.

Partly Cloudy

30°F

-1°C

Humidity 92%
Wind Speed Calm
Barometer 30.22 in (1023.5 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 13 Feb 3:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Sunny, with a high near 58. Light east 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 east 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:
4am CST Feb 13, 2026-6pm CST Feb 19, 2026
 
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Additional Resources

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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