News Headlines
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
67°F
19°C
| Humidity | 84% |
| Wind Speed | Calm |
| Barometer | 30.03 in (1017.1 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 19 Jun 8:56 pm CDT |
Extended Forecast for
Dahlgren IL
Tonight

Low: 63 °F
Mostly Cloudy
Saturday

High: 86 °F
Mostly Sunny
Saturday Night

Low: 66 °F
Partly Cloudy
Sunday

High: 84 °F
Showers
Sunday Night

Low: 68 °F
Showers
Monday
High: 80 °F
Chance
T-storms then
Chance
ShowersMonday Night

Low: 61 °F
Partly Cloudy
Tuesday

High: 80 °F
Mostly Sunny
Tuesday Night

Low: 62 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 63. Calm wind.
Saturday
Mostly sunny, with a high near 86. Light west wind.
Saturday Night
Partly cloudy, with a low around 66. Calm wind.
Sunday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. High near 84. Light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm. Low around 68. South southwest wind 13 to 16 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 80. North northwest wind around 11 mph.
Monday Night
Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 80. Light north northeast wind.
Tuesday Night
Partly cloudy, with a low around 62. Calm wind.
Wednesday
Sunny, with a high near 82. Calm wind becoming west around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 62. Light west northwest wind.
Thursday
A slight chance of showers and thunderstorms. Sunny, with a high near 82. Calm wind becoming west northwest around 6 mph in the afternoon.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. North northwest wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Calm wind becoming southeast around 5 mph in the morning.
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Dahlgren IL
38.19°N 88.7°W
38.19°N 88.7°W
8:46 pm CDT Jun 19, 2026
9pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026


