Mount Vernon, MO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Vernon, a city in Lawrence County, Missouri.
Overnight
72°F
Clear
Clear. Low around 72, with temperatures rising to around 74 overnight. South wind around 7 mph.
7-day forecast for Mount Vernon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Clear | 7 mph S | 0% |
| Saturday | 98°F | Sunny | 6 to 12 mph SW | 0% |
| Saturday Night | 72°F | Partly Cloudy | 7 mph SW | 6% |
| Sunday | 93°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 5 to 8 mph SW | 26% |
| Sunday Night | 66°F | Showers And Thunderstorms | 5 mph N | 83% |
| Monday | 81°F | Showers And Thunderstorms | 2 to 8 mph N | 83% |
| Monday Night | 59°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 9 mph N | 23% |
| Tuesday | 75°F | Partly Sunny | 8 mph N | 7% |
| Tuesday Night | 54°F | Partly Cloudy | 5 to 8 mph NE | 2% |
| Wednesday | 77°F | Sunny | 6 mph NE | 1% |
| Wednesday Night | 55°F | Mostly Clear | 5 mph E | 1% |
| Thursday | 79°F | Mostly Sunny | 5 mph E | 5% |
| Thursday Night | 58°F | Partly Cloudy | 5 mph E | 7% |
| Friday | 80°F | Slight Chance Rain Showers | 5 mph E | 17% |
Forecast source: National Weather Service (api.weather.gov) for Mount Vernon (37.105, -93.819). Updated through the day.
Growing snapshot for Mount Vernon
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
7a
More local growing data for Mount Vernon: nearby ZIP 65712 weather · frost dates · planting calendar · Missouri frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Mt Vernon Univ Mo - Sw Ctr, Mo (4.8 mi from Mount Vernon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.