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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

63°F

17°C

Humidity 97%
Wind Speed NE 3 mph
Barometer 30.03 in (1016.6 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Sep 12:52 am CDT
Extended Forecast for

Carbondale/Murphysboro, Southern Illinois Airport IL

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Saturday

    Saturday: A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 64. Light and variable wind.

    Low: 64 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Light south wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%.

    Low: 65 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 70%.

    High: 83 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 6 mph.

    Low: 63 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Southwest wind 3 to 7 mph.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East southeast wind 3 to 5 mph.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Patchy fog after 5am. Otherwise, partly cloudy, with a low around 62. Calm wind.
Saturday
A slight chance of showers before 7am, then a slight chance of showers and thunderstorms after 3pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 88. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly after 7pm. Mostly cloudy, with a low around 64. Light and variable wind.
Sunday
Showers likely and possibly a thunderstorm before 7am, then showers likely between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 85. Light south wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. South wind 3 to 6 mph. Chance of precipitation is 70%.
Monday
Showers likely, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. South wind 5 to 10 mph. Chance of precipitation is 70%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 3 to 6 mph.
Tuesday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 79. Southwest wind 3 to 7 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. East southeast wind 3 to 5 mph.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Southeast wind 5 to 9 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East northeast wind 5 to 7 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 77. North wind 6 to 9 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind 5 to 7 mph becoming light and variable after midnight.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77. Light and variable wind becoming west northwest 5 to 8 mph in the morning.
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ABOUT THIS FORECAST

 
Point Forecast:
Carbondale/Murphysboro, Southern Illinois Airport IL
 37.79°N 89.25°W
Last Update:
12:32 am CDT Sep 20, 2025
Forecast Valid:
1am CDT Sep 20, 2025-6pm CDT Sep 26, 2025
 
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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