Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Overcast
76°F
24°C
| Humidity | 85% |
| Wind Speed | SW 10 mph |
| Barometer | 29.94 in (1014.0 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 77°F (25°C) |
| Last update | 26 Jun 5:56 pm CDT |
Extended Forecast for
2 Miles NE Dahlgren IL
Flood Watch June 26, 06:57pm until June 28, 07:00am
NOW until 7:00am Sun
Flood Watch
Tonight
Low: 69 °F
Heavy Rain
then Showers
LikelySaturday

High: 84 °F
Chance
T-stormsSaturday Night
Low: 70 °F
Slight Chance
T-storms then
Chance
T-stormsSunday

High: 91 °F
Sunny
Sunday Night

Low: 74 °F
Mostly Clear
Monday

High: 94 °F
Sunny
Monday Night

Low: 75 °F
Mostly Clear
Tuesday

High: 94 °F
Sunny
Detailed Forecast
Tonight
Showers and thunderstorms before 3am, then showers likely and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Some of the storms could produce heavy rainfall. Low around 69. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 80%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 84. Light west southwest wind.
Saturday Night
A 50 percent chance of showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 70. Calm wind.
Sunday
Sunny, with a high near 91. Calm wind becoming south southwest 5 to 9 mph in the morning.
Sunday Night
Mostly clear, with a low around 74. South wind 3 to 7 mph.
Monday
Sunny, with a high near 94. South southwest wind 3 to 7 mph.
Monday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 94. Calm wind.
Tuesday Night
Clear, with a low around 75. Calm wind.
Wednesday
Sunny, with a high near 95. Calm wind.
Wednesday Night
Mostly clear, with a low around 76. Calm wind.
Thursday
Sunny, with a high near 96. Calm wind.
Thursday Night
Mostly clear, with a low around 76. Calm wind.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 95. Calm wind.
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ABOUT THIS FORECAST
Point Forecast:
2 Miles NE Dahlgren IL
38.24°N 88.66°W
38.24°N 88.66°W
6:51 pm CDT Jun 26, 2026
6pm CDT Jun 26, 2026-6pm CDT Jul 3, 2026



