Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
A Few Clouds
28°F
-2°C
| Humidity | 66% |
| Wind Speed | NW 8 mph |
| Barometer | 30.39 in (1030.1 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 20°F (-7°C) |
| Last update | 11 Jan 6:56 am CST |
Extended Forecast for
3 Miles SSE Dahlgren IL
Today
High: 38 °F
Slight Chance
Snow Showers
then SunnyTonight
Low: 26 °F
Mostly Clear
Monday
High: 50 °F
Sunny
Monday Night
Low: 35 °F
Partly Cloudy
Tuesday
High: 57 °F
Mostly Sunny
Tuesday Night
Low: 39 °F
Mostly Cloudy
then Slight
Chance
ShowersWednesday
High: 43 °F
Slight Chance
ShowersWednesday Night
Low: 19 °F
Mostly Cloudy
Thursday
High: 36 °F
Mostly Sunny
Detailed Forecast
Today
A 20 percent chance of snow showers before 7am. Mostly cloudy through mid morning, then gradual clearing, with a high near 38. Northwest wind 6 to 16 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 26. Calm wind becoming south southwest around 6 mph after midnight.
Monday
Sunny, with a high near 50. Southwest wind 7 to 11 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 35. South southwest wind 6 to 9 mph, with gusts as high as 18 mph.
Tuesday
Mostly sunny, with a high near 57. South southwest wind 10 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 39. West wind 7 to 10 mph.
Wednesday
A 20 percent chance of showers. Mostly cloudy, with a high near 43. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly cloudy, with a low around 19. North northwest wind 9 to 13 mph, with gusts as high as 21 mph.
Thursday
Mostly sunny, with a high near 36. North northwest wind 5 to 8 mph becoming west southwest in the afternoon.
Thursday Night
Mostly cloudy, with a low around 25. South wind 5 to 10 mph, with gusts as high as 18 mph.
Friday
Partly sunny, with a high near 42. West wind 8 to 14 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 23. West wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 34. West wind 7 to 13 mph.
Basemap Options
Click map to change the forecast location
Loading map...
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 CST Jan 11, 2026
6am CST Jan 11, 2026-6pm CST Jan 17, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
