Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
84°F
29°C
| Humidity | 66% |
| Wind Speed | N 14 G 21 mph |
| Barometer | 30.13 in |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 89°F (32°C) |
| Last update | 15 Aug 9:52 am CDT |
Extended Forecast for
2 Miles N Murphysboro IL
Extreme Heat Warning August 15, 10:37am until August 16, 08:00pm
NOW until 8:00pm Sun

Extreme Heat Warning
Today

High: 97 °F
Hot
Tonight

Low: 75 °F
Mostly Clear
Sunday

High: 98 °F
Hot
Sunday Night
Low: 72 °F
Slight Chance
T-storms then
Chance
ShowersMonday
High: 87 °F
Slight Chance
T-storms then
Slight Chance
ShowersMonday Night

Low: 66 °F
Partly Cloudy
Tuesday

High: 90 °F
Sunny
Tuesday Night

Low: 70 °F
Partly Cloudy
Detailed Forecast
Today
Sunny and hot, with a high near 97. Heat index values as high as 106. Southwest wind around 6 mph.
Tonight
Mostly clear, with a low around 75. South wind 3 to 6 mph.
Sunday
Mostly sunny and hot, with a high near 98. Heat index values as high as 108. West southwest wind around 6 mph.
Sunday Night
A slight chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 72. Light north wind. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms before 7am, then a slight chance of showers between 7am and 1pm. Mostly sunny, with a high near 87. North northwest wind 5 to 7 mph. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 66. Light north northeast wind.
Tuesday
Sunny, with a high near 90. Calm wind.
Tuesday Night
Partly cloudy, with a low around 70. Light southeast wind.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. South wind 5 to 9 mph becoming northwest in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. North northeast wind around 6 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. North northeast wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 64. North northeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles N Murphysboro IL
37.79°N 89.34°W
37.79°N 89.34°W
10:16 am CDT Aug 15, 2026
10am CDT Aug 15, 2026-6pm CDT Aug 21, 2026



