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
68°F
Clear
Clear. Low around 68, with temperatures rising to around 70 overnight. Southeast wind around 7 mph.
7-day forecast for Mount Vernon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Clear | 7 mph SE | 0% |
| Tuesday | 93°F | Sunny | 2 to 7 mph S | 0% |
| Tuesday Night | 73°F | Mostly Clear | 3 to 7 mph SE | 2% |
| Wednesday | 95°F | Mostly Sunny | 5 to 8 mph S | 11% |
| Wednesday Night | 73°F | Partly Cloudy then Chance Showers And Thunderstorms | 6 mph S | 32% |
| Thursday | 93°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 mph SW | 39% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 5 mph S | 58% |
| Friday | 89°F | Showers And Thunderstorms Likely | 6 mph S | 58% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 5 mph S | 29% |
| Saturday | 91°F | Slight Chance Showers And Thunderstorms | 7 mph S | 21% |
| Saturday Night | 72°F | Mostly Clear | 6 mph S | 9% |
| Sunday | 93°F | Sunny | 6 to 9 mph SW | 3% |
| Sunday Night | 73°F | Mostly Clear | 7 mph S | 3% |
| Monday | 93°F | Sunny | 7 to 10 mph SW | 2% |
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 Aug 4, 2026.