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
3 Miles SE Murphysboro IL
Heat Advisory August 10, 05:09am until August 13, 08:00pm
NOW until 8:00pm Thu

Heat Advisory
Today

High: 97 °F
Hot
Tonight

Low: 77 °F
Mostly Clear
Tuesday

High: 98 °F
Hot
Tuesday Night

Low: 78 °F
Mostly Clear
Wednesday

High: 97 °F
Slight Chance
T-stormsWednesday Night
Low: 77 °F
Chance
T-storms then
Chance
ShowersThursday

High: 95 °F
Slight Chance
T-stormsThursday Night

Low: 75 °F
Chance
Showers
Detailed Forecast
Today
Sunny and hot, with a high near 97. Heat index values as high as 107. South southwest wind around 9 mph.
Tonight
Mostly clear, with a low around 77. South southwest wind 7 to 9 mph.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 108. Southwest wind 7 to 9 mph.
Tuesday Night
Mostly clear, with a low around 78. South southwest wind around 9 mph.
Wednesday
A slight chance of showers, with thunderstorms also possible after 10am. Mostly sunny and hot, with a high near 97. Southwest wind around 8 mph. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. South southwest wind 6 to 8 mph. Chance of precipitation is 30%.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95. South southwest wind around 6 mph.
Thursday Night
A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 75. South wind 5 to 7 mph.
Friday
Mostly sunny, with a high near 93. Southwest wind around 6 mph.
Friday Night
Mostly clear, with a low around 74. Southeast wind 5 to 8 mph.
Saturday
Sunny, with a high near 94. South southwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 75. South wind 5 to 7 mph.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Southwest wind 5 to 7 mph becoming west northwest in the afternoon.
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SE Murphysboro IL
37.72°N 89.31°W
37.72°N 89.31°W
1:21 am CDT Aug 10, 2026
5am CDT Aug 10, 2026-6pm CDT Aug 16, 2026



