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Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair and Breezy
90°F
32°C
| Humidity | 54% |
| Wind Speed | S 25 G 39 mph |
| Barometer | 29.50 in (998.7 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 96°F (36°C) |
| Last update | 17 Jun 3:56 pm CDT |
Extended Forecast for
Dahlgren IL
Wind Advisory June 17, 06:46pm until June 17, 08:00pm
NOW until 8:00pm Wed

Wind Advisory
Tonight

Low: 71 °F
Heavy Rain
and BreezyThursday
High: 84 °F
Mostly Sunny
then Slight
Chance
ShowersThursday Night
Low: 61 °F
Slight Chance
Showers then
Partly CloudyJuneteenth

High: 83 °F
Sunny
Friday Night

Low: 64 °F
Partly Cloudy
Saturday

High: 85 °F
Mostly Sunny
Saturday Night
Low: 67 °F
Mostly Clear
then Chance
T-stormsSunday

High: 84 °F
Showers
Likely
Detailed Forecast
Tonight
Showers and thunderstorms, mainly before 3am. Some of the storms could produce heavy rainfall. Low around 71. Breezy, with a west southwest wind 19 to 29 mph decreasing to 9 to 19 mph after midnight. Winds could gust as high as 37 mph. Chance of precipitation is 90%.
Thursday
A slight chance of showers between 4pm and 5pm. Mostly sunny, with a high near 84. West northwest wind 5 to 8 mph. Chance of precipitation is 20%.
Thursday Night
A 10 percent chance of showers before 7pm. Partly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening.
Juneteenth
Sunny, with a high near 83. Calm wind.
Friday Night
Partly cloudy, with a low around 64. Calm wind.
Saturday
Mostly sunny, with a high near 85. Light south wind.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Light south southeast wind.
Sunday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 84. South southeast wind 6 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Mostly cloudy, with a low around 68. Southwest wind 11 to 15 mph becoming west northwest in the evening. Winds could gust as high as 21 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. North wind 11 to 13 mph, with gusts as high as 18 mph.
Monday Night
Partly cloudy, with a low around 62. North wind 5 to 9 mph becoming light after midnight.
Tuesday
Mostly sunny, with a high near 81. East northeast wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 62. Calm wind.
Wednesday
Mostly sunny, with a high near 84. Light northwest wind.
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ABOUT THIS FORECAST
Point Forecast:
Dahlgren IL
38.19°N 88.67°W
38.19°N 88.67°W
2:26 pm CDT Jun 17, 2026
6pm CDT Jun 17, 2026-6pm CDT Jun 24, 2026



