Hazardous Weather Conditions
Current conditions at
Mount Vernon Airport (KMVN)
Lat: 38.33°NLon: 88.85°WElev: 466ft.
Fair
78°F
26°C
| Humidity | 48% |
| Wind Speed | SW 16 mph |
| Barometer | 29.78 in |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 26 Mar 8:56 pm CDT |
Extended Forecast for
Waltonville IL
Tonight
Low: 42 °F
Partly Cloudy
then ShowersFriday
High: 53 °F
Showers
Likely then
Partly SunnyFriday Night

Low: 31 °F
Mostly Clear
then Patchy
FrostSaturday

High: 56 °F
Patchy Frost
then SunnySaturday Night

Low: 39 °F
Partly Cloudy
Sunday

High: 66 °F
Partly Sunny
Sunday Night

Low: 56 °F
Partly Cloudy
Monday

High: 80 °F
Mostly Sunny
Monday Night

Low: 63 °F
Mostly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 42. West southwest wind 13 to 17 mph becoming north northeast after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Friday
Showers and thunderstorms likely, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 53. North wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 31. North wind 6 to 13 mph, with gusts as high as 22 mph.
Saturday
Patchy frost before 8am. Otherwise, sunny, with a high near 56. North northeast wind around 6 mph becoming southeast in the afternoon.
Saturday Night
Partly cloudy, with a low around 39. South southeast wind around 5 mph.
Sunday
Partly sunny, with a high near 66. South wind 6 to 11 mph, with gusts as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 56. South wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 80. South southwest wind 11 to 15 mph, with gusts as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 63. South wind 11 to 13 mph, with gusts as high as 24 mph.
Tuesday
A slight chance of showers after 1pm. Partly sunny, with a high near 84. South southwest wind 13 to 17 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. South southwest wind 13 to 15 mph, with gusts as high as 25 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 78. South southwest wind 14 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57. South wind around 14 mph, with gusts as high as 24 mph.
Thursday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 72. South southwest wind around 15 mph, with gusts as high as 24 mph.
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ABOUT THIS FORECAST
Point Forecast:
Waltonville IL
38.23°N 89.03°W
38.23°N 89.03°W
8:26 pm CDT Mar 26, 2026
9pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026



