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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

81°F

27°C

Humidity 79%
Wind Speed W 12 mph
Barometer 29.65 in (1003.4 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Jun 2:52 am CDT
Extended Forecast for

3 Miles SW Carbondale IL

  • Overnight

    Overnight: Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a steady temperature around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.

    Low: 76 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 85. Light and variable wind becoming north northwest 5 to 7 mph in the morning.

    High: 85 °F

    Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.

    Low: 62 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 84. Light north wind.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light south southeast wind.

    Low: 68 °F

    Partly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm. Partly sunny, with a high near 85. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.

    High: 85 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 67. Southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 67 °F

    Showers

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm before 4am, then a chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a steady temperature around 76. Southwest wind 6 to 8 mph. Chance of precipitation is 60%.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 7am. Mostly sunny, with a high near 85. Light and variable wind becoming north northwest 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 62. North northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 84. Light north wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Light south southeast wind.
Sunday
Showers and possibly a thunderstorm. Partly sunny, with a high near 85. Light south southeast wind becoming south southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 67. Southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Monday
A chance of showers, mainly before 1pm. Partly sunny, with a high near 80. North wind around 10 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming light in the evening.
Tuesday
Mostly sunny, with a high near 82. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 63. Calm wind.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Light and variable wind.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Carbondale IL
 37.7°N 89.26°W
Last Update:
2:01 am CDT Jun 18, 2026
Forecast Valid:
3am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
 
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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