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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

81°F

27°C

Humidity 70%
Wind Speed SW 8 mph
Barometer 30.02 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 19 May 4:52 pm CDT
Extended Forecast for

3 Miles SW Carbondale/Murphysboro, Southern Illinois Airport IL

  • This Afternoon

    This Afternoon: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. South wind around 9 mph.

    High: 77 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 59. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 67. North northeast wind 8 to 10 mph. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 55. Northeast wind 5 to 9 mph.

    Low: 55 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 74. East northeast wind 6 to 9 mph.

    High: 74 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Showers, with thunderstorms also possible after 4am. Low around 59. East northeast wind 5 to 9 mph. Chance of precipitation is 80%.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 77. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 77 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Light south southwest wind.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 77. South wind around 9 mph.
Tonight
Showers and thunderstorms likely, mainly before 2am, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 59. Calm wind becoming north 5 to 7 mph after midnight. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 67. North northeast wind 8 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
Mostly cloudy, with a low around 55. Northeast wind 5 to 9 mph.
Thursday
Mostly cloudy, with a high near 74. East northeast wind 6 to 9 mph.
Thursday Night
Showers, with thunderstorms also possible after 4am. Low around 59. East northeast wind 5 to 9 mph. Chance of precipitation is 80%.
Friday
Showers and possibly a thunderstorm. High near 77. East wind 5 to 8 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 60. Southwest wind 5 to 7 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 81. Light south southwest wind.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Light and variable wind.
Sunday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Light and variable wind.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Light east southeast wind.
Memorial Day
Showers and thunderstorms likely. Mostly cloudy, with a high near 82. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Southeast wind around 5 mph becoming calm in the evening.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 84. Calm wind becoming south 5 to 7 mph in the morning.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Carbondale/Murphysboro, Southern Illinois Airport IL
 37.77°N 89.28°W
Last Update:
2:51 pm CDT May 19, 2026
Forecast Valid:
5pm CDT May 19, 2026-6pm CDT May 26, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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