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

28°F

-2°C

Humidity 92%
Wind Speed Calm
Barometer 29.99 in (1015.8 mb)
Dewpoint 26°F (-3°C)
Visibility 9.00 mi
Last update 31 Dec 11:52 pm CST
Extended Forecast for

Murphysboro IL

  • Overnight

    Overnight: Mostly clear, with a low around 26. Southwest wind around 5 mph becoming calm.

    Low: 26 °F

    Mostly Clear

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 41. Calm wind becoming north around 6 mph in the afternoon.

    High: 41 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30. Light northeast wind.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Cloudy, with a high near 44. Calm wind becoming east northeast around 6 mph in the morning.

    High: 44 °F

    Cloudy

  • Friday Night

    Friday Night: A 20 percent chance of rain before midnight. Cloudy, with a low around 30. Northeast wind around 6 mph.

    Low: 30 °F

    Slight Chance
    Rain then
    Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 42. North wind 5 to 7 mph.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25. Light north northwest wind.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 43. Light and variable wind.

    High: 43 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. South wind 3 to 8 mph.

    Low: 32 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 26. Southwest wind around 5 mph becoming calm.
New Year's Day
Mostly sunny, with a high near 41. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 30. Light northeast wind.
Friday
Cloudy, with a high near 44. Calm wind becoming east northeast around 6 mph in the morning.
Friday Night
A 20 percent chance of rain before midnight. Cloudy, with a low around 30. Northeast wind around 6 mph.
Saturday
Partly sunny, with a high near 42. North wind 5 to 7 mph.
Saturday Night
Mostly clear, with a low around 25. Light north northwest wind.
Sunday
Mostly sunny, with a high near 43. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 32. South wind 3 to 8 mph.
Monday
Sunny, with a high near 55. South southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 42. South wind around 6 mph.
Tuesday
Partly sunny, with a high near 61. South southwest wind 6 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 45. South southwest wind around 6 mph.
Wednesday
A slight chance of rain. Partly sunny, with a high near 59. West southwest wind 5 to 7 mph becoming south southeast in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.77°N 89.34°W
Last Update:
12:16 am CST Jan 1, 2026
Forecast Valid:
12am CST Jan 1, 2026-6pm CST Jan 7, 2026
 
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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