Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.N/A
| Humidity | NA |
| Wind Speed | NA |
| Barometer | NA |
| Dewpoint | N/A |
| Visibility | NA |
| Last update | *** Not a current observation *** |
Extended Forecast for
Murphysboro IL
Overnight

Low: 73 °F
Partly Cloudy
Friday

High: 90 °F
Chance
T-stormsFriday Night
Low: 74 °F
Slight Chance
T-storms then
Mostly ClearSaturday
High: 93 °F
Sunny then
Slight Chance
T-stormsSaturday Night
Low: 74 °F
Chance
T-storms then
Chance
ShowersSunday
High: 91 °F
Mostly Sunny
then Chance
T-stormsSunday Night

Low: 72 °F
Mostly Clear
Monday

High: 93 °F
Mostly Sunny
Monday Night

Low: 77 °F
Mostly Clear
Detailed Forecast
Overnight
Partly cloudy, with a low around 73. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 74. Light south southwest wind.
Saturday
A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 93. Heat index values as high as 105. West wind 3 to 7 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly between 7pm and 1am. Partly cloudy, with a low around 74. Light west southwest wind.
Sunday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Light and variable wind.
Sunday Night
Mostly clear, with a low around 72. Calm wind.
Monday
Mostly sunny, with a high near 93. Light and variable wind.
Monday Night
Mostly clear, with a low around 77. South wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 95. West northwest wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 72. North wind around 6 mph.
Wednesday
Sunny, with a high near 86. North northeast wind 5 to 8 mph.
Wednesday Night
Mostly clear, with a low around 66. North northeast wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming northeast around 6 mph in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
Murphysboro IL
37.77°N 89.34°W
37.77°N 89.34°W
1:26 am CDT Jul 17, 2026
1am CDT Jul 17, 2026-6pm CDT Jul 23, 2026



