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 79%
Wind Speed NW 7 mph
Barometer 30.30 in (1026.1 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 12 Mar 3:52 am CDT
Extended Forecast for

Carbondale IL

  • Today

    Today: Sunny, with a high near 54. Light and variable wind becoming west northwest 5 to 7 mph in the morning.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 31 mph.

    Low: 42 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Mostly sunny, with a high near 64. West wind 11 to 17 mph, with gusts as high as 25 mph.

    High: 64 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38. West northwest wind around 6 mph becoming light and variable.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. East northeast wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 55. Southeast wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.

    High: 71 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain and snow showers likely, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a west northwest wind around 23 mph, with gusts as high as 34 mph.

    Low: 27 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 37. Breezy, with a west northwest wind 17 to 21 mph, with gusts as high as 31 mph.

    High: 37 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 54. Light and variable wind becoming west northwest 5 to 7 mph in the morning.
Tonight
Mostly clear, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 18 to 23 mph after midnight. Winds could gust as high as 31 mph.
Friday
Mostly sunny, with a high near 64. West wind 11 to 17 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 38. West northwest wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 66. East northeast wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 55. Southeast wind 7 to 11 mph, with gusts as high as 21 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Breezy, with a south wind 14 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 70%.
Sunday Night
Rain and snow showers likely, mainly before 1am. Some thunder is also possible. Mostly cloudy, with a low around 27. Breezy, with a west northwest wind around 23 mph, with gusts as high as 34 mph.
Monday
Mostly sunny, with a high near 37. Breezy, with a west northwest wind 17 to 21 mph, with gusts as high as 31 mph.
Monday Night
Mostly clear, with a low around 18. Northwest wind 6 to 13 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 42. North northwest wind 5 to 7 mph becoming southwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 32. South southeast wind 5 to 7 mph.
Wednesday
Mostly cloudy, with a high near 58. South wind 7 to 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
3:41 am CDT Mar 12, 2026
Forecast Valid:
4am CDT Mar 12, 2026-6pm CDT Mar 18, 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