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.

Mostly Cloudy

67°F

19°C

Humidity 84%
Wind Speed SW 9 mph
Barometer 29.75 in (1007.3 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 11 Mar 9:56 am CDT
Extended Forecast for

Waltonville IL

  • Today

    Today: Showers and thunderstorms, mainly before 2pm. Temperature rising to near 66 by noon, then falling to around 45 during the remainder of the day. Breezy, with a west southwest wind 9 to 14 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    High: 66 °F⇓

    Showers and
    Breezy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 31. North northwest wind 8 to 18 mph, with gusts as high as 30 mph.

    Low: 31 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 54. Northwest wind 5 to 9 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 41. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.

    Low: 41 °F

    Partly Cloudy
    then Partly
    Cloudy and
    Breezy

  • Friday

    Friday: Partly sunny, with a high near 62. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.

    High: 62 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming light and variable.

    Low: 37 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 65. East wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52. Southeast wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 17 to 24 mph, with gusts as high as 33 mph.

    High: 68 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Showers and thunderstorms, mainly before 2pm. Temperature rising to near 66 by noon, then falling to around 45 during the remainder of the day. Breezy, with a west southwest wind 9 to 14 mph becoming northwest 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 31. North northwest wind 8 to 18 mph, with gusts as high as 30 mph.
Thursday
Sunny, with a high near 54. Northwest wind 5 to 9 mph.
Thursday Night
Partly cloudy, with a low around 41. Breezy, with a south wind 7 to 12 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 25 mph.
Friday
Partly sunny, with a high near 62. Southwest wind 13 to 18 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 65. East wind 6 to 10 mph becoming south southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 52. Southeast wind 9 to 15 mph, with gusts as high as 25 mph.
Sunday
A chance of showers and thunderstorms, then showers likely after 1pm. Mostly cloudy, with a high near 68. Breezy, with a south wind 17 to 24 mph, with gusts as high as 33 mph.
Sunday Night
A chance of rain and snow showers before 1am. Mostly cloudy, with a low around 26. Blustery, with a northwest wind 21 to 24 mph, with gusts as high as 34 mph.
Monday
Sunny, with a high near 39. Northwest wind 16 to 18 mph, with gusts as high as 28 mph.
Monday Night
Partly cloudy, with a low around 20. Northwest wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 43. West northwest wind 5 to 9 mph becoming southwest in the afternoon.
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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:
9:57 am CDT Mar 11, 2026
Forecast Valid:
10am CDT Mar 11, 2026-6pm CDT Mar 17, 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