National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 24 Sep 7:57 am CDT
Extended Forecast for

Murphysboro IL

  • Today

    Today: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 77. West wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 60%.

    High: 77 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely. Cloudy, then gradually becoming partly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 60%.

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 77. North northwest wind 6 to 10 mph.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. North northwest wind around 5 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 55. Calm wind.

    Low: 55 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 56. Calm wind.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 84. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 84 °F

    Sunny

Detailed Forecast

Today
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 77. West wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely. Cloudy, then gradually becoming partly cloudy, with a low around 60. North wind around 6 mph. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 77. North northwest wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 54. North northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 80. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Clear, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Clear, with a low around 56. Calm wind.
Sunday
Sunny, with a high near 84. Calm wind becoming northeast around 6 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 59. Light east northeast wind.
Monday
Sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 60. Light northeast wind.
Tuesday
Mostly sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
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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:
5:45 am CDT Sep 24, 2025
Forecast Valid:
8am CDT Sep 24, 2025-6pm CDT Sep 30, 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