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

Cold Weather Advisory January 23, 06:00pm until January 24, 01:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 11. Wind chill values as low as -5. North wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 11 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 7. Wind chill values as low as -8. Northeast wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 7 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow, mainly after 11am. High near 14. Wind chill values as low as -7. Northeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 14 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. The snow could be heavy at times. Low around 11. Wind chill values as low as zero. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

    Low: 11 °F

    Snow Likely
    then Heavy
    Snow

  • Sunday

    Sunday: Snow. High near 16. North northwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.

    High: 16 °F

    Snow then
    Snow Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 0. Northwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 0 °F

    Chance Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 13. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 13 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around -1. Light west wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 18 mph.

    Low: -1 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 26. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 26 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 11. Wind chill values as low as -5. North wind 11 to 14 mph, with gusts as high as 21 mph.
Tonight
Mostly cloudy, with a low around 7. Wind chill values as low as -8. Northeast wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
Snow, mainly after 11am. High near 14. Wind chill values as low as -7. Northeast wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow. The snow could be heavy at times. Low around 11. Wind chill values as low as zero. Northeast wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.
Sunday
Snow. High near 16. North northwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Sunday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 0. Northwest wind around 11 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 13. West northwest wind 6 to 11 mph, with gusts as high as 18 mph.
Monday Night
Mostly clear, with a low around -1. Light west wind becoming south southwest 5 to 10 mph in the evening. Winds could gust as high as 18 mph.
Tuesday
Sunny, with a high near 26. West wind 5 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Partly cloudy, with a low around 5. Light northwest wind.
Wednesday
Partly sunny, with a high near 22. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
Partly cloudy, with a low around 3. Northwest wind around 6 mph.
Thursday
Partly sunny, with a high near 17. Northwest 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:
Waltonville IL
 38.23°N 89.03°W
Last Update:
3:16 pm CST Jan 23, 2026
Forecast Valid:
4pm CST Jan 23, 2026-6pm CST Jan 29, 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