Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

84°F

29°C

Humidity 66%
Wind Speed N 14 G 21 mph
Barometer 30.13 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 15 Aug 9:52 am CDT
Extended Forecast for

2 Miles N Murphysboro IL

Extreme Heat Warning August 15, 10:37am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning August 15, 10:37am until August 16, 08:00pm

    NOW until 8:00pm Sun

    Extreme Heat Warning

  • Today

    High: 97 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 3 to 6 mph.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 98. Heat index values as high as 108. West southwest wind around 6 mph.

    High: 98 °F

    Hot

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 72. Light north wind.  Chance of precipitation is 30%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm.  Mostly sunny, with a high near 87. North northwest wind 5 to 7 mph.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Light north northeast wind.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 70. Light southeast wind.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 108. West southwest wind around 6 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 72. Light north wind. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 87. North northwest wind 5 to 7 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 66. Light north northeast wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Partly cloudy, with a low around 70. Light southeast wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind 5 to 9 mph becoming northwest in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. North northeast wind around 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. North northeast wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles N Murphysboro IL
 37.79°N 89.34°W
10:16 am CDT Aug 15, 2026
10am CDT Aug 15, 2026-6pm CDT Aug 21, 2026
 
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Additional Resources

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