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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fog/Mist

35°F

2°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 30.20 in (1023.1 mb)
Dewpoint 35°F (2°C)
Visibility 2.00 mi
Wind Chill30°F (-1°C)
Last update 21 Jan 9:52 pm CST
Extended Forecast for

Carbondale IL

Winter Storm Watch January 24, 12:00am until January 25, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Patchy fog before 11pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.

    Low: 24 °F

    Patchy Fog
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 41. Light north wind.

    High: 41 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 18. Light north northeast wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 21 mph.

    Low: 18 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 22. North wind around 15 mph, with gusts as high as 25 mph.

    High: 22 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 8. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 8 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow. High near 15. Northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 15 °F

    Snow Likely
    then Snow

  • Saturday Night

    Saturday Night: Snow before 9pm, then snow, possibly mixed with sleet between 9pm and midnight, then snow after midnight. Low around 12. North wind 8 to 10 mph. Chance of precipitation is 90%.

    Low: 12 °F

    Snow/Sleet
    then Snow

  • Sunday

    Sunday: A chance of snow, mainly before noon. Mostly cloudy, with a high near 18. North northwest wind around 10 mph, with gusts as high as 18 mph.

    High: 18 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 3. West northwest wind 5 to 8 mph.

    Low: 3 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog before 11pm. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 24. West southwest wind around 6 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 41. Light north wind.
Thursday Night
Mostly cloudy, with a low around 18. Light north northeast wind becoming north 6 to 11 mph after midnight. Winds could gust as high as 21 mph.
Friday
Partly sunny, with a high near 22. North wind around 15 mph, with gusts as high as 25 mph.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 8. North northeast wind 11 to 14 mph, with gusts as high as 22 mph.
Saturday
Snow. High near 15. Northeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
Snow before 9pm, then snow, possibly mixed with sleet between 9pm and midnight, then snow after midnight. Low around 12. North wind 8 to 10 mph. Chance of precipitation is 90%.
Sunday
A chance of snow, mainly before noon. Mostly cloudy, with a high near 18. North northwest wind around 10 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 3. West northwest wind 5 to 8 mph.
Monday
Sunny, with a high near 21. West northwest wind around 6 mph becoming south southwest in the afternoon.
Monday Night
Mostly clear, with a low around 8. South southwest wind around 6 mph.
Tuesday
Mostly sunny, with a high near 32. South southwest wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 18. South wind around 6 mph becoming west after midnight.
Wednesday
Partly sunny, with a high near 32. West northwest 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:
10:31 pm CST Jan 21, 2026
Forecast Valid:
10pm CST Jan 21, 2026-6pm CST Jan 28, 2026
 
Forecast Discussion
 
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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