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Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
78°F
26°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 30.05 in (1017.2 mb) |
| Dewpoint | 75°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 16 Aug 9:52 pm CDT |
Extended Forecast for
Ava IL
Heat Advisory August 16, 10:46pm until August 19, 07:00pm
NOW until 7:00pm Tue
Heat Advisory
Tonight
Low: 74 °F
Mostly Clear
Sunday
High: 98 °F
Sunny then
Slight Chance
T-stormsSunday Night
Low: 74 °F
Slight Chance
T-storms then
Mostly ClearMonday
High: 98 °F
Hot
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 98 °F
Hot
Tuesday Night
Low: 72 °F
Chance
T-stormsWednesday
High: 89 °F
Chance
T-storms
Detailed Forecast
Tonight
Mostly clear, with a low around 74. Light south wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming south southeast around 5 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 74. Light and variable wind.
Monday
Sunny and hot, with a high near 98. Heat index values as high as 105. Light south southeast wind.
Monday Night
Mostly clear, with a low around 75. Light and variable wind.
Tuesday
Sunny and hot, with a high near 98. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72. North wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 89. North wind 5 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 68. North northeast wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 86. North northeast wind 6 to 9 mph.
Thursday Night
Partly cloudy, with a low around 66. North northeast wind 3 to 7 mph.
Friday
Sunny, with a high near 88. North northeast wind 3 to 6 mph.
Friday Night
Mostly clear, with a low around 66. North northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 91. Calm wind becoming north northwest around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Ava IL
37.89°N 89.5°W
37.89°N 89.5°W
8:15 pm CDT Aug 16, 2025
10pm CDT Aug 16, 2025-6pm CDT Aug 23, 2025
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