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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

79°F

26°C

Humidity 74%
Wind Speed Calm
Barometer 30.20 in (1022.1 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 5 Aug 11:52 am CDT
Extended Forecast for

Murphysboro IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind.

    High: 86 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Calm wind.

    Low: 67 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69. Calm wind.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 91. Light south southeast wind.

    High: 91 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 70. Light southeast wind.

    Low: 70 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 71. South southeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 91. South wind 3 to 7 mph.

    High: 91 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Calm wind.
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 67. Calm wind.
Wednesday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind.
Wednesday Night
Mostly clear, with a low around 69. Calm wind.
Thursday
Sunny, with a high near 91. Light south southeast wind.
Thursday Night
Clear, with a low around 70. Light southeast wind.
Friday
Sunny, with a high near 91. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
Clear, with a low around 71. South southeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. South wind 3 to 7 mph.
Saturday Night
Mostly clear, with a low around 72. South southeast wind 3 to 6 mph.
Sunday
Sunny, with a high near 91. South wind 3 to 6 mph.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 73. South wind around 5 mph becoming calm in the evening.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 92. South southwest wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.77°N 89.34°W
Last Update:
11:32 am CDT Aug 5, 2025
Forecast Valid:
12pm CDT Aug 5, 2025-6pm CDT Aug 11, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation