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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast and Breezy

57°F

14°C

Humidity 78%
Wind Speed S 24 G 43 mph
Barometer 29.69 in (1005.4 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Feb 12:52 am CST
Extended Forecast for

Carbondale IL

  • Overnight

    Overnight: A slight chance of showers between 2am and 3am. Cloudy, with a low around 54. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.

    Low: 54 °F

    Slight Chance
    Showers and
    Breezy

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 9 to 18 mph, with gusts as high as 33 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 55. South wind 7 to 9 mph.

    Low: 55 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. South southwest wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    High: 71 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 41. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.

    Low: 41 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. West wind 5 to 11 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35. Calm wind becoming north northeast around 6 mph after midnight.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers, mainly after noon. Partly sunny, with a high near 47. North northeast wind 6 to 9 mph.

    High: 47 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of snow showers, mainly before midnight. Partly cloudy, with a low around 26. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 26 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
A slight chance of showers between 2am and 3am. Cloudy, with a low around 54. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 40 mph. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 9 to 18 mph, with gusts as high as 33 mph.
Wednesday Night
Partly cloudy, with a low around 55. South wind 7 to 9 mph.
Thursday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 71. South southwest wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 41. South southwest wind 10 to 14 mph becoming west after midnight. Winds could gust as high as 23 mph.
Friday
Sunny, with a high near 54. West wind 5 to 11 mph, with gusts as high as 20 mph.
Friday Night
Partly cloudy, with a low around 35. Calm wind becoming north northeast around 6 mph after midnight.
Saturday
A chance of showers, mainly after noon. Partly sunny, with a high near 47. North northeast wind 6 to 9 mph.
Saturday Night
A chance of snow showers, mainly before midnight. Partly cloudy, with a low around 26. North northwest wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 40. Northwest wind 11 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 21. North northwest wind 8 to 10 mph.
Monday
Sunny, with a high near 39. North northwest wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 20. Light and variable wind.
Tuesday
Mostly sunny, with a high near 46. Calm wind becoming south 5 to 9 mph in the morning.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
1:21 am CST Feb 18, 2026
Forecast Valid:
1am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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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