Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.66°F
19°C
| Humidity | 61% |
| Wind Speed | Calm |
| Barometer | 29.88 in (1012.1 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 20 Mar 8:56 pm CDT |
Extended Forecast for
5 Miles SSW Dahlgren IL
Tonight

Low: 53 °F
Partly Cloudy
Saturday

High: 80 °F
Sunny
Saturday Night

Low: 61 °F
Mostly Clear
Sunday

High: 84 °F
Sunny
Sunday Night

Low: 40 °F
Slight Chance
ShowersMonday

High: 57 °F
Sunny
Monday Night

Low: 39 °F
Partly Cloudy
Tuesday

High: 60 °F
Partly Sunny
Tuesday Night
Low: 43 °F
Partly Cloudy
then Slight
Chance
Showers
Detailed Forecast
Tonight
Partly cloudy, with a low around 53. West southwest wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 80. Northeast wind around 5 mph becoming light and variable.
Saturday Night
Mostly clear, with a low around 61. Calm wind becoming south southwest 5 to 8 mph in the evening.
Sunday
Sunny, with a high near 84. South southwest wind 10 to 14 mph, with gusts as high as 22 mph.
Sunday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 40. West northwest wind 13 to 15 mph becoming north in the evening. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 57. North northeast wind 9 to 11 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 39. Northeast wind around 6 mph.
Tuesday
Partly sunny, with a high near 60. East southeast wind around 6 mph becoming south in the afternoon.
Tuesday Night
A slight chance of showers after 1am. Mostly cloudy, with a low around 43. Light and variable wind becoming south southeast around 5 mph after midnight.
Wednesday
A slight chance of showers before 1pm. Mostly cloudy, with a high near 66. East northeast wind 6 to 9 mph becoming south southeast in the afternoon.
Wednesday Night
Partly cloudy, with a low around 50. South southeast wind 6 to 9 mph.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 78. South wind 10 to 16 mph, with gusts as high as 23 mph.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 42. West southwest wind around 14 mph becoming north after midnight. Winds could gust as high as 23 mph.
Friday
A chance of showers. Partly sunny, with a high near 54. North wind 11 to 14 mph, with gusts as high as 22 mph.
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ABOUT THIS FORECAST
Point Forecast:
5 Miles SSW Dahlgren IL
38.13°N 88.73°W
38.13°N 88.73°W
5:51 pm CDT Mar 20, 2026
9pm CDT Mar 20, 2026-6pm CDT Mar 27, 2026



