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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

37°F

3°C

Humidity 82%
Wind Speed S 16 mph
Barometer 30.14 in (1020.9 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 21 Jan 6:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: A 20 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 47. West southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 47 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.

    Low: 24 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 40. Light north wind.

    High: 40 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 15. Light northeast wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 21 mph.

    Low: 15 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 22. North wind around 14 mph, with gusts as high as 24 mph.

    High: 22 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 5. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 5 °F

    Mostly Cloudy
    then Slight
    Chance Snow
    Showers

  • Saturday

    Saturday: Snow showers likely, mainly after noon. Cloudy, with a high near 15. North northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 15 °F

    Snow Showers
    Likely

  • Saturday Night

    Saturday Night: Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 10. North northeast wind 7 to 10 mph.

    Low: 10 °F

    Snow Showers
    Likely

  • Sunday

    Sunday: A slight chance of snow showers before noon. Mostly cloudy, with a high near 20. North wind 6 to 8 mph.

    High: 20 °F

    Slight Chance
    Snow Showers
    then Partly
    Sunny

Detailed Forecast

Today
A 20 percent chance of showers before 8am. Mostly cloudy, then gradually becoming sunny, with a high near 47. West southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.
Thursday
Mostly sunny, with a high near 40. Light north wind.
Thursday Night
Mostly cloudy, with a low around 15. Light northeast wind becoming north 8 to 13 mph after midnight. Winds could gust as high as 21 mph.
Friday
Mostly cloudy, with a high near 22. North wind around 14 mph, with gusts as high as 24 mph.
Friday Night
A 20 percent chance of snow showers after midnight. Mostly cloudy, with a low around 5. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday
Snow showers likely, mainly after noon. Cloudy, with a high near 15. North northeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Saturday Night
Snow showers likely, mainly before midnight. Mostly cloudy, with a low around 10. North northeast wind 7 to 10 mph.
Sunday
A slight chance of snow showers before noon. Mostly cloudy, with a high near 20. North wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 6. Northwest wind 3 to 5 mph.
Monday
Sunny, with a high near 23. Light and variable wind becoming west northwest around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 8. South southwest wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 31. South southwest wind 5 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:
5:46 am CST Jan 21, 2026
Forecast Valid:
7am CST Jan 21, 2026-6pm CST Jan 27, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation