Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair and Breezy
42°F
6°C
| Humidity | 49% |
| Wind Speed | S 21 G 26 mph |
| Barometer | 29.67 in (1005.4 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 33°F (1°C) |
| Last update | 24 Feb 4:56 pm CST |
Extended Forecast for
Dahlgren IL
Tonight
Low: 36 °F
Mostly Cloudy
and Breezy
then Mostly
CloudyWednesday
High: 53 °F
Slight Chance
Showers then
Mostly CloudyWednesday Night
Low: 36 °F
Mostly Cloudy
then Chance
ShowersThursday
High: 51 °F
Chance
Showers then
Partly SunnyThursday Night
Low: 33 °F
Mostly Clear
Friday
High: 62 °F
Sunny
Friday Night
Low: 40 °F
Mostly Clear
Saturday
High: 67 °F
Sunny
Saturday Night
Low: 34 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 36. Breezy, with a south southwest wind 16 to 21 mph becoming west 5 to 10 mph after midnight. Winds could gust as high as 31 mph.
Wednesday
A slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 53. Light and variable wind. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 36. Calm wind becoming east northeast 5 to 7 mph in the evening.
Thursday
A 30 percent chance of showers before noon. Partly sunny, with a high near 51. East northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 33. Light and variable wind.
Friday
Sunny, with a high near 62. Calm wind becoming southwest 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 40. South southwest wind 5 to 8 mph.
Saturday
Sunny, with a high near 67. South wind 5 to 9 mph.
Saturday Night
Partly cloudy, with a low around 34. South wind 7 to 11 mph becoming north northeast after midnight. Winds could gust as high as 20 mph.
Sunday
A slight chance of showers after noon. Partly sunny, with a high near 50. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 35. East northeast wind around 10 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers. Mostly cloudy, with a high near 53. East southeast wind around 10 mph, with gusts as high as 18 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 36. East southeast wind around 8 mph.
Tuesday
A chance of showers. Mostly cloudy, with a high near 55. North northeast wind 7 to 9 mph becoming west southwest in the afternoon.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Dahlgren IL
38.19°N 88.7°W
38.19°N 88.7°W
4:37 pm CST Feb 24, 2026
5pm CST Feb 24, 2026-6pm CST Mar 3, 2026
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