National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

47°F

8°C

Humidity 48%
Wind Speed S 13 mph
Barometer 30.05 in (1018.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 12 Mar 9:56 pm CDT
Extended Forecast for

3 Miles NNE Dahlgren IL

  • Tonight

    Tonight: Partly cloudy, with a low around 42. Breezy, with a south southwest wind 11 to 21 mph, with gusts as high as 36 mph.

    Low: 42 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 61. Breezy, with a west wind 14 to 20 mph, with gusts as high as 36 mph.

    High: 61 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. West northwest wind around 6 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 64. East northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 64 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 51. Southeast wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.

    High: 70 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Low around 25. Breezy, with a south southwest wind 23 to 25 mph becoming west northwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 80%.

    Low: 25 °F

    Showers and
    Breezy then
    Rain/Snow and
    Blustery

  • Monday

    Monday: A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 34 mph.

    High: 32 °F

    Slight Chance
    Snow Showers
    and Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. West northwest wind 9 to 17 mph, with gusts as high as 23 mph.

    Low: 13 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 42. Breezy, with a south southwest wind 11 to 21 mph, with gusts as high as 36 mph.
Friday
Partly sunny, with a high near 61. Breezy, with a west wind 14 to 20 mph, with gusts as high as 36 mph.
Friday Night
Partly cloudy, with a low around 36. West northwest wind around 6 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 64. East northeast wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 51. Southeast wind 7 to 11 mph, with gusts as high as 22 mph.
Sunday
A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 70. Breezy, with a south wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 70%.
Sunday Night
Rain showers before 1am, then a chance of rain and snow showers. Some thunder is also possible. Low around 25. Breezy, with a south southwest wind 23 to 25 mph becoming west northwest after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 80%.
Monday
A slight chance of snow showers before 1pm. Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 21 to 24 mph, with gusts as high as 34 mph.
Monday Night
Mostly clear, with a low around 13. West northwest wind 9 to 17 mph, with gusts as high as 23 mph.
Tuesday
Mostly sunny, with a high near 35. West wind 7 to 9 mph.
Tuesday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 24. West southwest wind 5 to 8 mph becoming southeast in the evening.
Wednesday
A slight chance of rain and snow showers. Partly sunny, with a high near 53. South wind 9 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 38. Southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 64. South southwest wind 6 to 9 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Dahlgren IL
 38.24°N 88.66°W
Last Update:
9:36 pm CDT Mar 12, 2026
Forecast Valid:
10pm CDT Mar 12, 2026-6pm CDT Mar 19, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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