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

36°F

2°C

Humidity 64%
Wind Speed Calm
Barometer 30.41 in (1030.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 28 Nov 5:52 pm CST
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: A 50 percent chance of snow, mainly after 4am. Cloudy, with a low around 29. Calm wind becoming southeast around 6 mph after midnight.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow showers before 11am, then rain. High near 42. South wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    then Rain

  • Saturday Night

    Saturday Night: Rain before midnight, then a slight chance of showers between midnight and 3am. Low around 27. South wind 13 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    Low: 27 °F

    Rain then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly cloudy, with a high near 33. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 33 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 22. North northwest wind 5 to 7 mph becoming light and variable after midnight.

    Low: 22 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. East northeast wind 3 to 5 mph.

    High: 34 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Monday Night

    Monday Night: Snow showers likely, mainly before midnight. Cloudy, with a low around 23. Light north northwest wind. Chance of precipitation is 60%.

    Low: 23 °F

    Snow Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 32. North northwest wind 3 to 6 mph.

    High: 32 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 19. Calm wind.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Tonight
A 50 percent chance of snow, mainly after 4am. Cloudy, with a low around 29. Calm wind becoming southeast around 6 mph after midnight.
Saturday
Snow showers before 11am, then rain. High near 42. South wind 7 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Saturday Night
Rain before midnight, then a slight chance of showers between midnight and 3am. Low around 27. South wind 13 to 15 mph becoming west northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Sunday
Mostly cloudy, with a high near 33. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Sunday Night
Mostly cloudy, with a low around 22. North northwest wind 5 to 7 mph becoming light and variable after midnight.
Monday
A 20 percent chance of snow showers after noon. Mostly cloudy, with a high near 34. East northeast wind 3 to 5 mph.
Monday Night
Snow showers likely, mainly before midnight. Cloudy, with a low around 23. Light north northwest wind. Chance of precipitation is 60%.
Tuesday
Partly sunny, with a high near 32. North northwest wind 3 to 6 mph.
Tuesday Night
Partly cloudy, with a low around 19. Calm wind.
Wednesday
Mostly sunny, with a high near 39. Calm wind becoming south southwest 5 to 7 mph in the morning.
Wednesday Night
Mostly cloudy, with a low around 23. Calm wind becoming northwest around 5 mph after midnight.
Thursday
Partly sunny, with a high near 36. Northwest wind around 6 mph.
Thursday Night
A slight chance of freezing rain. Mostly cloudy, with a low around 23. Light and variable wind.
Friday
A slight chance of showers. Partly sunny, with a high near 41. South southwest wind 3 to 7 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:
5:31 pm CST Nov 28, 2025
Forecast Valid:
6pm CST Nov 28, 2025-6pm CST Dec 5, 2025
 
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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