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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

N/A

Humidity NA
Wind Speed SE 6 mph
Barometer 30.14 in
Dewpoint N/A
Visibility 7.00 mi
Last update 20 Nov 3:56 am CST
Extended Forecast for

2 Miles ESE Dahlgren IL

  • Today

    Today: Showers likely. Cloudy, with a high near 56. Calm wind becoming southeast around 6 mph. Chance of precipitation is 70%.

    High: 56 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers, mainly after 3am. Areas of fog after 7pm. Low around 52. Calm wind. Chance of precipitation is 90%.

    Low: 52 °F

    Showers and
    Areas Fog

  • Friday

    Friday: Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers and possibly a thunderstorm after noon. High near 66. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 100%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 46. North wind around 6 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 59. North northeast wind 3 to 7 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 62. Calm wind becoming southwest around 5 mph.

    High: 62 °F

    Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after midnight. Mostly cloudy, with a low around 42. Light and variable wind.

    Low: 42 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 60. East southeast wind 3 to 7 mph.

    High: 60 °F

    Chance
    Showers

Detailed Forecast

Today
Showers likely. Cloudy, with a high near 56. Calm wind becoming southeast around 6 mph. Chance of precipitation is 70%.
Tonight
Showers, mainly after 3am. Areas of fog after 7pm. Low around 52. Calm wind. Chance of precipitation is 90%.
Friday
Showers and possibly a thunderstorm before 9am, then showers between 9am and noon, then showers and possibly a thunderstorm after noon. High near 66. Calm wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 100%.
Friday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 46. North wind around 6 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 59. North northeast wind 3 to 7 mph.
Saturday Night
Mostly clear, with a low around 36. Calm wind.
Sunday
Sunny, with a high near 62. Calm wind becoming southwest around 5 mph.
Sunday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 42. Light and variable wind.
Monday
A chance of showers. Mostly cloudy, with a high near 60. East southeast wind 3 to 7 mph.
Monday Night
Showers. Mostly cloudy, with a low around 49. South wind 6 to 8 mph.
Tuesday
A chance of showers. Partly sunny, with a high near 62. South wind 7 to 10 mph becoming west in the afternoon.
Tuesday Night
Partly cloudy, with a low around 41. West wind around 6 mph.
Wednesday
Partly sunny, with a high near 54. Northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Dahlgren IL
 38.19°N 88.64°W
Last Update:
3:16 am CST Nov 20, 2025
Forecast Valid:
4am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation