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

25°F

-4°C

Humidity 78%
Wind Speed NE 10 G 18 mph
Barometer 30.48 in (1032.5 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill15°F (-9°C)
Last update 1 Dec 1:52 am CST
Extended Forecast for

Murphysboro IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 21. East northeast wind around 5 mph.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of snow showers, mainly after 4pm. Cloudy, with a high near 34. East wind around 6 mph becoming calm in the afternoon.

    High: 34 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Monday Night

    Monday Night: Snow showers and sleet before 2am, then a slight chance of snow showers between 2am and 3am. Low around 22. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow and sleet accumulation of 1 to 2 inches possible.

    Low: 22 °F

    Snow/Sleet
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33. North northwest wind 5 to 7 mph becoming calm in the afternoon.

    High: 33 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Calm wind becoming south around 5 mph after midnight.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 41. South southwest wind 5 to 9 mph.

    High: 41 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 21. Light and variable wind becoming north northwest 5 to 10 mph after midnight.

    Low: 21 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 30. North northwest wind 5 to 10 mph becoming light north northeast in the afternoon.

    High: 30 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of snow showers after midnight. Mostly cloudy, with a low around 20. Calm wind.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 21. East northeast wind around 5 mph.
Monday
A 30 percent chance of snow showers, mainly after 4pm. Cloudy, with a high near 34. East wind around 6 mph becoming calm in the afternoon.
Monday Night
Snow showers and sleet before 2am, then a slight chance of snow showers between 2am and 3am. Low around 22. Calm wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%. New snow and sleet accumulation of 1 to 2 inches possible.
Tuesday
Mostly sunny, with a high near 33. North northwest wind 5 to 7 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 22. Calm wind becoming south around 5 mph after midnight.
Wednesday
Mostly sunny, with a high near 41. South southwest wind 5 to 9 mph.
Wednesday Night
Mostly cloudy, with a low around 21. Light and variable wind becoming north northwest 5 to 10 mph after midnight.
Thursday
Partly sunny, with a high near 30. North northwest wind 5 to 10 mph becoming light north northeast in the afternoon.
Thursday Night
A chance of snow showers after midnight. Mostly cloudy, with a low around 20. Calm wind.
Friday
A chance of snow showers before noon, then a chance of rain showers. Mostly cloudy, with a high near 37. Calm wind becoming south around 5 mph.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 26. Light southwest wind.
Saturday
Partly sunny, with a high near 42. Southwest wind 3 to 7 mph.
Saturday Night
Mostly cloudy, with a low around 29. Light and variable wind becoming west around 5 mph after midnight.
Sunday
Partly sunny, with a high near 40. West northwest wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.75°N 89.31°W
Last Update:
1:56 am CST Dec 1, 2025
Forecast Valid:
2am CST Dec 1, 2025-6pm CST Dec 7, 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