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.

Overcast

N/A

Humidity NA
Wind Speed Calm
Barometer 30.19 in
Dewpoint N/A
Visibility 10.00 mi
Last update 19 Nov 4:56 pm CST
Extended Forecast for

3 Miles NNE Waltonville IL

  • Tonight

    Tonight: Cloudy, with a low around 46. Light east southeast wind.

    Low: 46 °F

    Cloudy

  • Thursday

    Thursday: Showers likely, mainly between noon and 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 58. Light southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 70%.

    High: 58 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 52. Light east southeast wind. Chance of precipitation is 90%.

    Low: 52 °F

    Showers

  • Friday

    Friday: Showers. High near 66. Light and variable wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 45. North wind 5 to 7 mph. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 60. North northeast wind 3 to 6 mph.

    High: 60 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Calm wind becoming west southwest around 6 mph.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

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

    Low: 42 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Cloudy, with a low around 46. Light east southeast wind.
Thursday
Showers likely, mainly between noon and 1pm. Patchy fog before 9am. Otherwise, cloudy, with a high near 58. Light southeast wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 70%.
Thursday Night
Showers and possibly a thunderstorm. Low around 52. Light east southeast wind. Chance of precipitation is 90%.
Friday
Showers. High near 66. Light and variable wind becoming south southeast 5 to 9 mph in the morning. Chance of precipitation is 90%.
Friday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 45. North wind 5 to 7 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 60. North northeast wind 3 to 6 mph.
Saturday Night
Partly cloudy, with a low around 38. Calm wind.
Sunday
Mostly sunny, with a high near 62. Calm wind becoming west southwest around 6 mph.
Sunday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 42. Calm wind.
Monday
A chance of showers. Mostly cloudy, with a high near 62. Calm wind becoming southeast 5 to 7 mph in the morning.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47. Southeast wind 3 to 7 mph.
Tuesday
A chance of showers. Mostly cloudy, with a high near 61. South southeast wind 7 to 10 mph becoming west in the afternoon.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 39. West northwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 52. Northwest wind 6 to 9 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Waltonville IL
 38.25°N 89°W
Last Update:
5:01 pm CST Nov 19, 2025
Forecast Valid:
5pm CST Nov 19, 2025-6pm CST Nov 26, 2025
 
Forecast Discussion
 
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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