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

35°F

2°C

Humidity 82%
Wind Speed Calm
Barometer 30.04 in (1017.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 17 Nov 12:52 am CST
Extended Forecast for

Murphysboro IL

  • Overnight

    Overnight: Clear, with a steady temperature around 37. Calm wind.

    Low: 37 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 49. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.

    Low: 49 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers and thunderstorms. Partly sunny, with a high near 72. South southwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.

    High: 72 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 52. South southwest wind around 6 mph becoming calm in the evening.

    Low: 52 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after noon. Mostly cloudy, with a high near 69. Calm wind becoming west northwest around 5 mph.

    High: 69 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54. Calm wind becoming south southeast around 5 mph after midnight. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm before noon, then showers likely. Cloudy, with a high near 69. South wind 5 to 9 mph.

    High: 69 °F

    Showers

  • Thursday Night

    Thursday Night: Showers. Cloudy, with a low around 57. South wind 7 to 9 mph.

    Low: 57 °F

    Showers

Detailed Forecast

Overnight
Clear, with a steady temperature around 37. Calm wind.
Monday
Sunny, with a high near 62. Calm wind becoming southeast 5 to 9 mph in the morning.
Monday Night
Showers likely, then showers and possibly a thunderstorm after 9pm. Low around 49. Southeast wind 6 to 9 mph. Chance of precipitation is 80%.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 72. South southwest wind 7 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 50%.
Tuesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 52. South southwest wind around 6 mph becoming calm in the evening.
Wednesday
A 20 percent chance of showers after noon. Mostly cloudy, with a high near 69. Calm wind becoming west northwest around 5 mph.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 54. Calm wind becoming south southeast around 5 mph after midnight. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm before noon, then showers likely. Cloudy, with a high near 69. South wind 5 to 9 mph.
Thursday Night
Showers. Cloudy, with a low around 57. South wind 7 to 9 mph.
Friday
Showers likely, mainly before noon. Partly sunny, with a high near 68. South southwest wind 8 to 11 mph, with gusts as high as 20 mph.
Friday Night
A chance of showers. Partly cloudy, with a low around 45. South southwest wind 5 to 7 mph becoming west after midnight.
Saturday
A slight chance of showers. Partly sunny, with a high near 58. West wind 5 to 8 mph.
Saturday Night
Mostly cloudy, with a low around 40. Light west northwest wind.
Sunday
A slight chance of showers. Mostly sunny, with a high near 59. West wind 3 to 7 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Murphysboro IL
 37.75°N 89.31°W
Last Update:
10:31 pm CST Nov 16, 2025
Forecast Valid:
1am CST Nov 17, 2025-6pm CST Nov 23, 2025
 
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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