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

23°F

-5°C

Humidity 92%
Wind Speed Calm
Barometer 30.14 in (1021.1 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 9 Feb 6:52 am CST
Extended Forecast for

Murphysboro IL

  • Today

    Today: Patchy fog before 8am. Otherwise, sunny, with a high near 54. Calm wind.

    High: 54 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. Light and variable wind becoming southwest 5 to 8 mph in the evening.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.

    High: 63 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 33. North wind around 6 mph.

    Low: 33 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. North wind 3 to 6 mph.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the morning.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of showers. Mostly cloudy, with a low around 33. East wind around 6 mph.

    Low: 33 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after noon. Mostly cloudy, with a high near 46. East wind around 7 mph.

    High: 46 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 8am. Otherwise, sunny, with a high near 54. Calm wind.
Tonight
Partly cloudy, with a low around 39. Light and variable wind becoming southwest 5 to 8 mph in the evening.
Tuesday
Mostly sunny, with a high near 63. Southwest wind 6 to 8 mph becoming north northwest in the afternoon.
Tuesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 33. North wind around 6 mph.
Wednesday
Mostly sunny, with a high near 50. North wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Mostly cloudy, with a high near 47. Calm wind becoming east southeast around 6 mph in the morning.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 33. East wind around 6 mph.
Friday
A chance of showers, mainly after noon. Mostly cloudy, with a high near 46. East wind around 7 mph.
Friday Night
A chance of showers, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 34. East northeast wind around 7 mph.
Saturday
Showers likely. Mostly cloudy, with a high near 47. East northeast wind 7 to 10 mph.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 35. North wind around 10 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 50. Northwest wind 7 to 11 mph, with gusts as high as 18 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:
6:52 am CST Feb 9, 2026
Forecast Valid:
7am CST Feb 9, 2026-6pm CST Feb 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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