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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Waltonville IL

  • Overnight

    Overnight: Mostly clear, with a low around 3. Light west northwest wind.

    Low: 3 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 29. Wind chill values as low as -3. Calm wind becoming south 5 to 9 mph in the afternoon.

    High: 29 °F

    Sunny then
    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: A 50 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. South wind 5 to 7 mph becoming west after midnight.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37. West southwest wind 3 to 6 mph.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25. Calm wind.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow showers. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 7 mph in the morning.

    High: 35 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 18. North wind 3 to 6 mph.

    Low: 18 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. North wind 3 to 6 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. Calm wind.

    Low: 10 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 3. Light west northwest wind.
Sunday
A 20 percent chance of snow after 5pm. Increasing clouds, with a high near 29. Wind chill values as low as -3. Calm wind becoming south 5 to 9 mph in the afternoon.
Sunday Night
A 50 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. South wind 5 to 7 mph becoming west after midnight.
Monday
Partly sunny, with a high near 37. West southwest wind 3 to 6 mph.
Monday Night
Mostly cloudy, with a low around 25. Calm wind.
Tuesday
A 20 percent chance of snow showers. Mostly cloudy, with a high near 35. Calm wind becoming north 5 to 7 mph in the morning.
Tuesday Night
Mostly cloudy, with a low around 18. North wind 3 to 6 mph.
Wednesday
Partly sunny, with a high near 30. North wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 10. Calm wind.
Thursday
Partly sunny, with a high near 34. Calm wind becoming south southwest 5 to 8 mph in the morning.
Thursday Night
Partly cloudy, with a low around 26. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Friday
Mostly sunny, with a high near 44. West southwest wind 8 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 18 mph.
Friday Night
Partly cloudy, with a low around 20. North wind around 7 mph.
Saturday
Mostly sunny, with a high near 32. North wind around 6 mph becoming east in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
3:16 am CST Feb 1, 2026
Forecast Valid:
3am CST Feb 1, 2026-6pm CST Feb 7, 2026
 
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