Hazardous Weather Conditions
Current conditions at
Southern Illinois Airport (KMDH)
Lat: 37.78°NLon: 89.25°WElev: 400ft.
Overcast
76°F
24°C
| Humidity | 94% |
| Wind Speed | SW 7 mph |
| Barometer | 29.92 in (1012.8 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 9.00 mi |
| Heat Index | 76°F (24°C) |
| Last update | 27 Jun 4:52 am CDT |
Extended Forecast for
5 Miles NNW Vergennes IL
Flood Watch June 27, 05:14am until June 28, 07:00am
NOW until 7:00am Sun
Flood Watch
Overnight
Low: 74 °F
Showers
LikelySaturday
High: 85 °F
T-storms
LikelySaturday Night
Low: 71 °F
Chance
Showers then
Chance
T-stormsSunday
High: 93 °F
Slight Chance
Showers then
SunnySunday Night
Low: 73 °F
Mostly Clear
Monday
High: 95 °F
Sunny
Monday Night
Low: 75 °F
Mostly Clear
Tuesday
High: 96 °F
Sunny
Detailed Forecast
Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a steady temperature around 74. Calm wind. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm before 7am, then showers and thunderstorms likely, mainly between 7am and 8am. Mostly cloudy, with a high near 85. Southwest wind 3 to 7 mph. Chance of precipitation is 60%.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A 10 percent chance of showers before 7am. Partly sunny, then gradually becoming sunny, with a high near 93. Heat index values as high as 111. Light south southeast wind becoming south southwest 5 to 10 mph in the morning.
Sunday Night
Mostly clear, with a low around 73. South wind 3 to 8 mph.
Monday
Sunny, with a high near 95. Light south wind increasing to 5 to 9 mph in the morning.
Monday Night
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Tuesday
Sunny, with a high near 96. Calm wind becoming south around 6 mph in the morning.
Tuesday Night
Clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 96. Light south wind.
Wednesday Night
Mostly clear, with a low around 76. Light and variable wind.
Thursday
Sunny, with a high near 94. Light and variable wind.
Thursday Night
Mostly clear, with a low around 75. Calm wind.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles NNW Vergennes IL
37.97°N 89.39°W
37.97°N 89.39°W
5:06 am CDT Jun 27, 2026
5am CDT Jun 27, 2026-6pm CDT Jul 3, 2026
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