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.

Overcast

28°F

-2°C

Humidity 85%
Wind Speed SW 8 mph
Barometer 30.13 in (1020.8 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 3 Dec 4:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 40. South southwest wind 3 to 8 mph.

    High: 40 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 21. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.

    Low: 21 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly sunny, with a high near 30. North wind 5 to 10 mph becoming light north northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A slight chance of snow showers after midnight, mixing with freezing rain after 3am. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.

    Low: 19 °F

    Mostly Cloudy
    then Slight
    Chance Wintry
    Mix

  • Friday

    Friday: Mostly sunny, with a high near 40. Calm wind becoming south southwest around 5 mph.

    High: 40 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 43. Light and variable wind.

    High: 43 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28. Light northeast wind.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 42. North wind 3 to 7 mph.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 40. South southwest wind 3 to 8 mph.
Tonight
Increasing clouds, with a low around 21. Light and variable wind becoming north 5 to 10 mph after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 30. North wind 5 to 10 mph becoming light north northeast in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
A slight chance of snow showers after midnight, mixing with freezing rain after 3am. Mostly cloudy, with a low around 19. Calm wind. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 40. Calm wind becoming south southwest around 5 mph.
Friday Night
Partly cloudy, with a low around 26. Calm wind.
Saturday
Partly sunny, with a high near 43. Light and variable wind.
Saturday Night
Mostly cloudy, with a low around 28. Light northeast wind.
Sunday
Partly sunny, with a high near 42. North wind 3 to 7 mph.
Sunday Night
A slight chance of showers before midnight. Mostly cloudy, with a low around 26. North northwest wind around 6 mph.
Monday
Partly sunny, with a high near 38. Northwest wind around 6 mph becoming light and variable in the afternoon.
Monday Night
Partly cloudy, with a low around 27. Calm wind becoming south southwest around 6 mph after midnight.
Tuesday
Mostly sunny, with a high near 47. Southwest wind 6 to 9 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
5:06 am CST Dec 3, 2025
Forecast Valid:
5am CST Dec 3, 2025-6pm CST Dec 9, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation