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.

Fog/Mist

52°F

11°C

Humidity 97%
Wind Speed Calm
Barometer 29.99 in (1015.3 mb)
Dewpoint 51°F (11°C)
Visibility 0.75 mi
Last update 13 Oct 4:52 am CDT
Extended Forecast for

Murphysboro IL

  • Columbus Day

    Columbus Day: Patchy fog before 9am. Otherwise, sunny, with a high near 81. Calm wind.

    High: 81 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 56. Calm wind.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Tuesday Night

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

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. Light east wind.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming east southeast 5 to 7 mph in the morning.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. East southeast wind 3 to 6 mph.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 82 °F

    Mostly Sunny

Detailed Forecast

Columbus Day
Patchy fog before 9am. Otherwise, sunny, with a high near 81. Calm wind.
Tonight
Mostly clear, with a low around 56. Calm wind.
Tuesday
Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 55. Calm wind.
Wednesday
Sunny, with a high near 82. Calm wind becoming east northeast around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. Light east wind.
Thursday
Sunny, with a high near 80. Calm wind becoming east southeast 5 to 7 mph in the morning.
Thursday Night
Partly cloudy, with a low around 56. East southeast wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 82. Light south southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
A slight chance of showers after 1am. Mostly clear, with a low around 62. South wind around 7 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. South southwest wind 8 to 11 mph, with gusts as high as 18 mph.
Saturday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 52. South southwest wind 6 to 8 mph.
Sunday
A chance of showers. Sunny, with a high near 70. West northwest wind 7 to 11 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:
4:31 am CDT Oct 13, 2025
Forecast Valid:
4am CDT Oct 13, 2025-6pm CDT Oct 19, 2025
 
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Additional Resources

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