Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

47°F

8°C

Humidity 93%
Wind Speed N 14 mph
Barometer 29.92 in (1013.3 mb)
Dewpoint 45°F (7°C)
Visibility 9.00 mi
Wind Chill41°F (5°C)
Last update 15 Feb 10:52 am CST
Extended Forecast for

Carbondale IL

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 7 to 14 mph, with gusts as high as 23 mph.

    High: 55 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Patchy fog after 1am.  Otherwise, partly cloudy, with a low around 37. North wind around 6 mph becoming calm  in the evening.

    Low: 37 °F

    Partly Cloudy
    then Patchy
    Fog

  • Washington's Birthday

    Washington's Birthday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest 5 to 9 mph in the morning.

    High: 62 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44. South wind around 6 mph.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 64. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 64 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 59. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 34 mph.

    Low: 59 °F

    Mostly Cloudy
    and Breezy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 73. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.

    High: 73 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. South southwest wind 6 to 10 mph.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 74. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 55. North northeast wind 7 to 14 mph, with gusts as high as 23 mph.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 37. North wind around 6 mph becoming calm in the evening.
Washington's Birthday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming south southwest 5 to 9 mph in the morning.
Monday Night
Partly cloudy, with a low around 44. South wind around 6 mph.
Tuesday
Mostly cloudy, with a high near 64. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Tuesday Night
Mostly cloudy, with a low around 59. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 34 mph.
Wednesday
Mostly sunny, with a high near 73. Southwest wind 11 to 18 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 53. South southwest wind 6 to 10 mph.
Thursday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. South southwest wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 44. South southwest wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph.
Friday
A chance of showers. Partly sunny, with a high near 57. West northwest wind 7 to 9 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 35. North wind around 7 mph.
Saturday
A chance of showers. Mostly sunny, with a high near 51. North northwest wind 6 to 8 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale IL
 37.72°N 89.23°W
10:27 am CST Feb 15, 2026
11am CST Feb 15, 2026-6pm CST Feb 21, 2026
 
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Additional Resources

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