Mount Vernon, AR Weather & Growing Conditions
Today
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 98. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 0 to 5 mph SE | 0% |
| Tonight | 70°F | Mostly Clear | 0 to 5 mph E | 0% |
| Wednesday | 99°F | Sunny | 0 to 5 mph SE | 1% |
| Wednesday Night | 73°F | Mostly Clear | 0 to 5 mph SE | 4% |
| Thursday | 99°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SSW | 17% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph S | 21% |
| Friday | 96°F | Chance Showers And Thunderstorms | 0 to 5 mph SSW | 51% |
| Friday Night | 72°F | Chance Showers And Thunderstorms | 0 mph | 51% |
| Saturday | 95°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 5 mph SSW | 28% |
| Saturday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 mph | 25% |
| Sunday | 96°F | Mostly Sunny | 0 to 5 mph SSW | 10% |
| Sunday Night | 74°F | Partly Cloudy | 0 to 5 mph S | 10% |
| Monday | 97°F | Mostly Sunny | 0 to 5 mph SSW | 10% |
| Monday Night | 74°F | Partly Cloudy | 0 to 5 mph S | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mount Vernon, AR
Last spring frost
Apr 9
First fall frost
Oct 25
Growing season
198 days
Hardiness zone
8a
Explore more for Mount Vernon, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Greenbrier, Ar (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.