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Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Fair

62°F

17°C

Humidity 37%
Wind Speed E 15 G 20 mph
Barometer 29.99 in (1015.9 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 14 Mar 2:56 pm CDT
Extended Forecast for

Waltonville IL

Wind Advisory March 15, 10:00am until March 16, 07:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 65. Southeast wind around 11 mph, with gusts as high as 18 mph.

    High: 65 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. South wind 7 to 15 mph, with gusts as high as 26 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 69. Breezy, with a south wind 20 to 29 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.

    High: 69 °F

    Breezy.
    Slight Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Rain showers before 10pm, then rain, possibly mixed with snow showers between 10pm and 1am, then a slight chance of snow showers after 1am. Some thunder is also possible. Low around 23. Breezy, with a west wind 23 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.

    Low: 23 °F

    Rain/Snow and
    Breezy

  • Monday

    Monday: Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 22 to 24 mph, with gusts as high as 40 mph.

    High: 32 °F

    Mostly Cloudy
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 14. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.

    Low: 14 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 37. Northwest wind around 7 mph becoming west southwest in the afternoon.

    High: 37 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 29. Light south southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 24 mph.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 61. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.

    High: 61 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 65. Southeast wind around 11 mph, with gusts as high as 18 mph.
Tonight
Increasing clouds, with a low around 53. South wind 7 to 15 mph, with gusts as high as 26 mph.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 4pm. Mostly cloudy, with a high near 69. Breezy, with a south wind 20 to 29 mph, with gusts as high as 39 mph. Chance of precipitation is 60%.
Sunday Night
Rain showers before 10pm, then rain, possibly mixed with snow showers between 10pm and 1am, then a slight chance of snow showers after 1am. Some thunder is also possible. Low around 23. Breezy, with a west wind 23 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 90%.
Monday
Mostly cloudy, with a high near 32. Breezy, with a west northwest wind 22 to 24 mph, with gusts as high as 40 mph.
Monday Night
Partly cloudy, with a low around 14. West northwest wind 10 to 18 mph, with gusts as high as 28 mph.
Tuesday
Sunny, with a high near 37. Northwest wind around 7 mph becoming west southwest in the afternoon.
Tuesday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 29. Light south southeast wind becoming south 9 to 14 mph in the evening. Winds could gust as high as 24 mph.
Wednesday
Mostly sunny, with a high near 61. Southwest wind 11 to 16 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 40. South southwest wind 5 to 7 mph.
Thursday
Sunny, with a high near 70. South southwest wind 5 to 7 mph.
Thursday Night
Partly cloudy, with a low around 46. South wind around 5 mph.
Friday
Mostly sunny, with a high near 72. South wind 6 to 8 mph becoming west in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waltonville IL
 38.2°N 89.03°W
Last Update:
1:26 pm CDT Mar 14, 2026
Forecast Valid:
3pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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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