National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

70°F

21°C

Humidity 38%
Wind Speed SW 7 G 17 mph
Barometer 29.85 in (1010.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 5 Nov 1:52 pm CST
Extended Forecast for

Carbondale/Murphysboro, Southern Illinois Airport IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 69. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. West northwest wind 5 to 8 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 56. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 56 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Clear then
    Frost

  • Saturday

    Saturday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55. Calm wind becoming north northwest 5 to 7 mph.

    High: 55 °F

    Frost then
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 6 mph.

    High: 61 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 3am. Otherwise, clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 67 °F

    Areas Frost
    then Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 69. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 44. West northwest wind 5 to 8 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 56. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Friday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 29. North northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 55. Calm wind becoming north northwest 5 to 7 mph.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, mostly clear, with a low around 30. Calm wind.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 61. Calm wind becoming west around 6 mph.
Sunday Night
Patchy frost after 3am. Otherwise, clear, with a low around 33. Calm wind.
Monday
Areas of frost before 7am. Otherwise, sunny, with a high near 67. Calm wind becoming south southwest around 6 mph in the afternoon.
Monday Night
Clear, with a low around 36. Light southwest wind.
Tuesday
Sunny, with a high near 68. Calm wind becoming west around 5 mph.
Tuesday Night
Clear, with a low around 36. Calm wind.
Veterans Day
Sunny, with a high near 66. Calm wind becoming northwest around 5 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
 37.79°N 89.25°W
Last Update:
2:06 pm CST Nov 5, 2026
Forecast Valid:
2pm CST Nov 5, 2026-6pm CST Nov 11, 2026
 
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