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Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Mostly Cloudy
65°F
18°C
| Humidity | 93% |
| Wind Speed | Calm |
| Barometer | 30.03 in (1017.0 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 20 Jun 6:56 am CDT |
Extended Forecast for
3 Miles SSE Dahlgren IL
Today
High: 87 °F
Mostly Sunny
Tonight
Low: 66 °F
Partly Cloudy
Sunday
High: 86 °F
Chance
T-storms then
Showers
LikelySunday Night
Low: 68 °F
T-storms then
ShowersMonday
High: 80 °F
Chance
ShowersMonday Night
Low: 61 °F
Partly Cloudy
Tuesday
High: 81 °F
Mostly Sunny
Tuesday Night
Low: 62 °F
Mostly Clear
Wednesday
High: 83 °F
Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 87. Light west northwest wind.
Tonight
Partly cloudy, with a low around 66. Calm wind.
Sunday
Showers and thunderstorms likely, mainly before 3pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 86. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 60%.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. South southwest wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Monday
A chance of showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 80. Northwest wind around 10 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 8 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light north northeast wind.
Tuesday Night
Mostly clear, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 83. Light and variable wind.
Wednesday Night
Mostly clear, with a low around 63. Light and variable wind.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 63. Light and variable wind.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Dahlgren IL
38.15°N 88.67°W
38.15°N 88.67°W
5:26 am CDT Jun 20, 2026
7am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
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Hourly Weather Forecast
