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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

77°F

25°C

Humidity 85%
Wind Speed Calm
Barometer 30.01 in (1016.2 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 27 Jun 9:56 pm CDT
Extended Forecast for

5 Miles SW Dahlgren IL

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 3am and 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 73. Light southwest wind.

    Low: 73 °F

    Chance
    T-storms and
    Patchy Fog

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 89 °F

    Chance
    T-storms and
    Patchy Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 7am. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.

    High: 87 °F

    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm. High near 88. West wind 5 to 7 mph. Chance of precipitation is 90%.

    High: 88 °F

    Showers
    Likely then
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming calm in the evening.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87. North northwest wind 3 to 6 mph.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Light north northwest wind.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly between 3am and 4am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 73. Light southwest wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming west southwest around 5 mph in the afternoon.
Saturday Night
A chance of showers and thunderstorms before 4am, then a slight chance of showers. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 30%.
Sunday
Showers likely, then showers and possibly a thunderstorm after 7am. High near 87. Calm wind becoming south southwest around 6 mph in the morning. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening.
Monday
Showers and possibly a thunderstorm. High near 88. West wind 5 to 7 mph. Chance of precipitation is 90%.
Monday Night
A 40 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 70. West southwest wind around 5 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 87. North northwest wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 66. Light north northwest wind.
Wednesday
Mostly sunny, with a high near 88. Light west northwest wind.
Wednesday Night
Mostly clear, with a low around 68. Calm wind.
Thursday
Sunny, with a high near 90. Light south southwest wind.
Thursday Night
Mostly clear, with a low around 70. Light south wind.
Independence Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. South southwest wind 3 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Dahlgren IL
 38.15°N 88.75°W
Last Update:
9:02 pm CDT Jun 27, 2025
Forecast Valid:
10pm CDT Jun 27, 2025-6pm CDT Jul 4, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation