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.

A Few Clouds

73°F

23°C

Humidity 79%
Wind Speed SW 16 G 31 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 10 Mar 8:52 pm CDT
Extended Forecast for

Carbondale IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 64. South southwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms before 3pm, then a chance of showers. Temperature rising to near 70 by 11am, then falling to around 56 during the remainder of the day. Breezy, with a southwest wind 17 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.

    High: 70 °F⇓

    Showers and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55. North northwest wind around 7 mph becoming southwest in the afternoon.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. South wind 6 to 16 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 65 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 40. North wind around 6 mph becoming east after midnight.

    Low: 40 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 54. South wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 64. South southwest wind around 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms before 3pm, then a chance of showers. Temperature rising to near 70 by 11am, then falling to around 56 during the remainder of the day. Breezy, with a southwest wind 17 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 100%.
Wednesday Night
Mostly cloudy, with a low around 33. Breezy, with a north northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 55. North northwest wind around 7 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. South wind 6 to 16 mph, with gusts as high as 26 mph.
Friday
Partly sunny, with a high near 65. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Partly cloudy, with a low around 40. North wind around 6 mph becoming east after midnight.
Saturday
Sunny, with a high near 69. East wind 6 to 11 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 54. South wind 9 to 13 mph, with gusts as high as 24 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Partly sunny, with a high near 69. Breezy, with a south wind 16 to 21 mph becoming west in the afternoon. Winds could gust as high as 32 mph.
Sunday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 25. Northwest wind 16 to 18 mph, with gusts as high as 29 mph.
Monday
Mostly sunny, with a high near 39. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday Night
Partly cloudy, with a low around 20. North northwest wind 5 to 8 mph.
Tuesday
Partly sunny, with a high near 45. North wind 5 to 8 mph becoming south southwest in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
Last Update:
7:01 pm CDT Mar 10, 2026
Forecast Valid:
9pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026
 
Forecast Discussion
 
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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