Mount Vernon, TX Weather & Growing Conditions
Tonight
73°F
Mostly Clear
Mostly clear. Low around 73, with temperatures rising to around 75 overnight. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 mph S | 0% |
| Sunday | 99°F | Mostly Sunny | 5 to 10 mph SSW | 0% |
| Sunday Night | 75°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph SSW | 19% |
| Monday | 96°F | Chance Showers And Thunderstorms | 5 mph WNW | 28% |
| Monday Night | 72°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph N | 28% |
| Tuesday | 94°F | Mostly Sunny | 5 to 10 mph NNE | 10% |
| Tuesday Night | 70°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 94°F | Sunny | 5 to 10 mph ENE | 3% |
| Wednesday Night | 68°F | Mostly Clear | 5 mph ENE | 1% |
| Thursday | 94°F | Mostly Sunny | 5 to 10 mph ENE | 0% |
| Thursday Night | 68°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Friday | 94°F | Mostly Sunny | 5 mph E | 2% |
| Friday Night | 69°F | Partly Cloudy | 0 to 5 mph E | 2% |
| Saturday | 94°F | Partly Sunny | 5 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Vernon, TX
Last spring frost
Mar 15
First fall frost
Nov 16
Growing season
245 days
Hardiness zone
8b
Explore more for Mount Vernon, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Mt Vernon, Tx (7.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.