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.

Mostly Cloudy

55°F

13°C

Humidity 53%
Wind Speed NW 6 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 18 Apr 5:52 pm CDT
Extended Forecast for

Murphysboro IL

  • Tonight

    Tonight: Mostly clear, with a low around 38. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 68. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. West wind around 6 mph becoming light and variable after midnight.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Light and variable wind becoming east northeast around 5 mph.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 49. South southeast wind around 6 mph.

    Low: 49 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55. Southwest wind 6 to 10 mph.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Southwest wind 6 to 9 mph.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59. South wind around 6 mph.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 38. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
Sunday
Sunny, with a high near 68. Light southwest wind becoming west 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 41. West wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 69. Light and variable wind becoming east northeast around 5 mph.
Monday Night
Clear, with a low around 49. South southeast wind around 6 mph.
Tuesday
Sunny, with a high near 77. South southwest wind 7 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 55. Southwest wind 6 to 10 mph.
Wednesday
Sunny, with a high near 79. Southwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 59. South wind around 6 mph.
Thursday
Sunny, with a high near 83. South wind 7 to 15 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. South wind around 11 mph, with gusts as high as 22 mph.
Friday
Showers and thunderstorms likely. Partly sunny, with a high near 78. South wind 13 to 15 mph, with gusts as high as 24 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. West southwest wind around 10 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 72. North northwest wind around 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:
3:02 pm CDT Apr 18, 2026
Forecast Valid:
6pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
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Additional Resources

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