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

    Tonight: Mostly cloudy, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Light west wind.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66. Calm wind.

    Low: 66 °F

    Partly Cloudy

  • Sunday

    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%.

    High: 84 °F

    Showers

  • Sunday Night

    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%.

    Low: 68 °F

    Showers

  • Monday

    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.

    High: 80 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 61. North wind 5 to 9 mph becoming calm  in the evening.

    Low: 61 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Light north northeast wind.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62. Calm wind.

    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.
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ABOUT THIS FORECAST

 
Point Forecast:
Dahlgren IL
 38.19°N 88.7°W
8:46 pm CDT Jun 19, 2026
9pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

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