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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
85°F
29°C
| Humidity | 68% |
| Wind Speed | S 6 mph |
| Barometer | 30.01 in (1016.0 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 92°F (33°C) |
| Last update | 12 Aug 9:56 am CDT |
Extended Forecast for
5 Miles SSW Dahlgren IL
Today
High: 92 °F
Partly Sunny
then Slight
Chance
T-stormsTonight
Low: 71 °F
Chance
T-stormsWednesday
High: 89 °F
Chance
T-stormsWednesday Night
Low: 69 °F
Slight Chance
T-storms then
Slight Chance
ShowersThursday
High: 88 °F
Mostly Sunny
Thursday Night
Low: 70 °F
Mostly Clear
Friday
High: 94 °F
Sunny
Friday Night
Low: 73 °F
Mostly Clear
Saturday
High: 97 °F
Hot
Detailed Forecast
Today
A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 92. South southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 71. Calm wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming northwest around 5 mph in the afternoon.
Wednesday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 69. Calm wind. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 88. Calm wind.
Thursday Night
Mostly clear, with a low around 70. Calm wind.
Friday
Sunny, with a high near 94. Light south southeast wind.
Friday Night
Mostly clear, with a low around 73. Calm wind.
Saturday
Sunny and hot, with a high near 97. Light south southwest wind.
Saturday Night
Mostly clear, with a low around 75. Calm wind.
Sunday
Sunny and hot, with a high near 98. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 74. Light and variable wind.
Monday
Mostly sunny, with a high near 95. Calm wind becoming northeast around 6 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles SSW Dahlgren IL
38.13°N 88.73°W
38.13°N 88.73°W
5:46 am CDT Aug 12, 2025
10am CDT Aug 12, 2025-6pm CDT Aug 18, 2025
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