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

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Fair

60°F

16°C

Humidity 86%
Wind Speed Calm
Barometer 30.11 in (1019.4 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 9:52 pm CDT
Extended Forecast for

Murphysboro IL

  • Tonight

    Tonight: Mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.

    High: 87 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. East northeast wind 3 to 5 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Northeast wind 3 to 8 mph.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 56. East northeast wind 3 to 7 mph.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. Northeast wind 3 to 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Labor Day

    Labor Day: Mostly sunny, with a high near 85. Northeast wind 3 to 6 mph.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 55. Calm wind.
Friday
Sunny, with a high near 87. Calm wind becoming east around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. East northeast wind 3 to 5 mph.
Saturday
Sunny, with a high near 85. Northeast wind 3 to 8 mph.
Saturday Night
Partly cloudy, with a low around 56. East northeast wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 85. Northeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 57. Northeast wind 3 to 6 mph.
Labor Day
Mostly sunny, with a high near 85. Northeast wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers after 1pm. Mostly sunny, with a high near 78. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 59. Light north wind.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 83. Calm wind becoming west northwest 5 to 8 mph in the morning.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 55. Northwest wind around 6 mph.
Thursday
A slight chance of showers. Mostly sunny, with a high near 73. Northwest wind 6 to 10 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:
9:17 pm CDT Aug 28, 2025
Forecast Valid:
10pm CDT Aug 28, 2025-6pm CDT Sep 4, 2025
 
Forecast Discussion
 
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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