Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
43°F
6°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.6 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 7 Oct 2:56 am CDT |
Extended Forecast for
5 Miles SW Dahlgren IL
Overnight

Low: 47 °F
Clear
Wednesday

High: 86 °F
Sunny
Wednesday Night

Low: 55 °F
Mostly Clear
Thursday

High: 84 °F
Sunny
Thursday Night

Low: 53 °F
Clear
Friday

High: 86 °F
Sunny
Friday Night

Low: 59 °F
Mostly Clear
Saturday
High: 84 °F
Sunny then
Slight Chance
ShowersSaturday Night

Low: 57 °F
Chance
Showers
Detailed Forecast
Overnight
Clear, with a low around 47. Calm wind.
Wednesday
Sunny, with a high near 86. Light south southwest wind becoming west southwest 5 to 10 mph in the morning.
Wednesday Night
Mostly clear, with a low around 55. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Light and variable wind.
Thursday Night
Clear, with a low around 53. Calm wind.
Friday
Sunny, with a high near 86. Calm wind becoming southeast 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 59. Southeast wind 3 to 5 mph.
Saturday
A slight chance of showers after 1pm. Mostly sunny, with a high near 84. Light south wind becoming south southeast 6 to 11 mph in the morning.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 57. East southeast wind around 8 mph.
Sunday
A chance of showers. Partly sunny, with a high near 77. East northeast wind 11 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 56. North northwest wind around 6 mph becoming calm in the evening.
Columbus Day
Mostly sunny, with a high near 81. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57. South wind 3 to 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 82. Southwest wind 5 to 13 mph.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles SW Dahlgren IL
38.15°N 88.75°W
38.15°N 88.75°W
1:26 am CDT Oct 7, 2026
3am CDT Oct 7, 2026-6pm CDT Oct 13, 2026


