Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33° N Lon: 88.85° W Elev: 466 ft.

Fair

55°F

13°C

Humidity 47%
Wind Speed Vrbl 6 mph
Barometer 30.29 in (1026.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill54°F (12°C)
Last update 5 Apr 1:56 pm CDT
Detailed forecast for

Jefferson County

This Afternoon
Sunny. Near steady temperature in the upper 50s. Northwest winds around 10 mph.
Tonight
Clear. Lows in the upper 30s. Northwest winds 5 to 10 mph, becoming west after midnight.
Monday
Sunny. Highs in the lower 60s. Northwest winds 5 to 10 mph.
Monday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 40. North winds 5 to 10 mph.
Tuesday
Partly sunny. Highs in the mid 50s. Northeast winds 5 to 10 mph.
Tuesday Night And Wednesday
Partly cloudy. Lows in the upper 30s. Highs in the lower 70s.
Wednesday Night And Thursday
Partly cloudy. Lows in the lower 50s. Highs in the lower 70s.
Thursday Night
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 50s.
Friday Through Saturday
Mostly cloudy with a chance of showers. Highs in the upper 70s. Lows in the upper 50s. Chance of rain 30 percent.



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125 PM CDT Sun Apr 5 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database