Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Fair
64°F
18°C
| Humidity | 50% |
| Wind Speed | SW 10 mph |
| Barometer | 30.20 in (1022.6 mb) |
| Dewpoint | 45°F (7°C) |
| Visibility | 10.00 mi |
| Last update | 21 Apr 8:52 am CDT |
Extended Forecast for
3 Miles SW Vergennes IL
Lake Wind Advisory April 21, 11:00am until April 21, 09:00pm
Today
High: 77 °F
Sunny then
Mostly Sunny
and BreezyTonight
Low: 53 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 57 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 62 °F
Partly Cloudy
then Chance
ShowersFriday
High: 75 °F
Showers
Friday Night
Low: 57 °F
Chance
T-stormsSaturday
High: 75 °F
Mostly Sunny
then Slight
Chance
Showers
Detailed Forecast
Today
Mostly sunny, with a high near 77. Breezy, with a south southwest wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 28 mph.
Tonight
Mostly clear, with a low around 53. South southwest wind 7 to 17 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 77. Southwest wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 57. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 80. South wind 7 to 16 mph, with gusts as high as 24 mph.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind around 14 mph, with gusts as high as 22 mph.
Friday
Showers and possibly a thunderstorm. High near 75. South wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South southwest wind 7 to 9 mph becoming north after midnight.
Saturday
A slight chance of showers after 1pm. Mostly sunny, with a high near 75. North wind 7 to 9 mph.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 54. East northeast wind around 7 mph.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 75. East northeast wind 7 to 9 mph.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. East wind around 9 mph.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 76. South wind 9 to 13 mph, with gusts as high as 20 mph.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SW Vergennes IL
37.86°N 89.39°W
37.86°N 89.39°W
7:41 am CDT Apr 21, 2026
9am CDT Apr 21, 2026-6pm CDT Apr 27, 2026
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