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Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Mostly Cloudy

81°F

27°C

Humidity 62%
Wind Speed W 5 mph
Barometer 29.86 in (1010.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 22 Sep 3:52 pm CDT
Extended Forecast for

Murphysboro IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind around 8 mph.

    High: 78 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 64. South southwest wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Tuesday

    Tuesday: A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 60%.

    High: 81 °F

    Areas Fog
    then Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Low around 66. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 90%.

    Low: 66 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 78. South wind 6 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northwest wind around 6 mph. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 75. Northwest wind 6 to 9 mph.

    High: 75 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. North northwest wind 3 to 7 mph.

    High: 79 °F

    Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78. South southwest wind around 8 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 64. South southwest wind around 5 mph becoming calm in the evening.
Tuesday
A slight chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 81. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 60%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 66. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm before 7am, then showers between 7am and 1pm, then showers likely and possibly a thunderstorm after 1pm. High near 78. South wind 6 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northwest wind around 6 mph. Chance of precipitation is 30%.
Thursday
A 30 percent chance of showers, mainly after 1pm. Mostly sunny, with a high near 75. Northwest wind 6 to 9 mph.
Thursday Night
Mostly clear, with a low around 55. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 79. North northwest wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 55. Calm wind.
Saturday
Sunny, with a high near 83. Calm wind becoming northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 57. Calm wind.
Sunday
Sunny, with a high near 84. Calm wind becoming northeast around 5 mph in the afternoon.
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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:
2:31 pm CDT Sep 22, 2025
Forecast Valid:
3pm CDT Sep 22, 2025-6pm CDT Sep 28, 2025
 
Forecast Discussion
 
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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