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

29°F

-2°C

Humidity 54%
Wind Speed Vrbl 6 mph
Barometer 30.31 in
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 27 Jan 2:56 pm CST
Extended Forecast for

Waltonville IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 30. West northwest wind 6 to 10 mph.

    High: 30 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around -2. Northwest wind around 5 mph becoming calm in the evening.

    Low: -2 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Patchy fog between 8am and 10am. Otherwise, mostly sunny, with a high near 27. Wind chill values as low as -2. Calm wind becoming west 5 to 8 mph.

    High: 27 °F

    Patchy Fog
    then Mostly
    Sunny

  • Wednesday Night

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

    Low: 10 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 24. Calm wind becoming northeast around 6 mph in the morning.

    High: 24 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 6. Calm wind becoming north around 5 mph after midnight.

    Low: 6 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 16. North wind 5 to 10 mph.

    High: 16 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 0. North wind 6 to 8 mph.

    Low: 0 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 17. Northwest wind 6 to 10 mph.

    High: 17 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 30. West northwest wind 6 to 10 mph.
Tonight
Partly cloudy, with a low around -2. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Patchy fog between 8am and 10am. Otherwise, mostly sunny, with a high near 27. Wind chill values as low as -2. Calm wind becoming west 5 to 8 mph.
Wednesday Night
Mostly cloudy, with a low around 10. Calm wind.
Thursday
Mostly cloudy, with a high near 24. Calm wind becoming northeast around 6 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 6. Calm wind becoming north around 5 mph after midnight.
Friday
Mostly sunny, with a high near 16. North wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 0. North wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 17. Northwest wind 6 to 10 mph.
Saturday Night
Partly cloudy, with a low around 1. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Partly sunny, with a high near 25. Light and variable wind becoming west southwest 5 to 7 mph in the morning.
Sunday Night
A slight chance of snow showers. Mostly cloudy, with a low around 12. South southwest wind 3 to 5 mph.
Monday
Partly sunny, with a high near 31. West wind 5 to 8 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.23°N 89.03°W
Last Update:
3:16 pm CST Jan 27, 2026
Forecast Valid:
3pm CST Jan 27, 2026-6pm CST Feb 2, 2026
 
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Additional Resources

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Chance of Precipitation