Mount Vernon, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mount Vernon, a city in Westchester County, New York.
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 79 in the afternoon. North wind around 12 mph.
7-day forecast for Mount Vernon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 12 mph N | 0% |
| Tonight | 57°F | Partly Cloudy | 7 to 10 mph N | 0% |
| Saturday | 70°F | Mostly Sunny | 8 to 12 mph E | 0% |
| Saturday Night | 60°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 8 mph SE | 18% |
| Sunday | 70°F | Showers And Thunderstorms | 6 to 13 mph SE | 85% |
| Sunday Night | 60°F | Showers And Thunderstorms | 3 to 13 mph W | 85% |
| Monday | 68°F | Chance Rain Showers | 13 mph NE | 43% |
| Monday Night | 56°F | Chance Rain Showers | 9 to 13 mph NE | 29% |
| Tuesday | 63°F | Chance Rain Showers | 15 mph NE | 28% |
| Tuesday Night | 53°F | Chance Rain Showers | 15 mph NE | 28% |
| Wednesday | 62°F | Slight Chance Rain Showers | 17 mph NE | 15% |
| Wednesday Night | 53°F | Chance Rain Showers | 14 to 17 mph NE | 33% |
| Thursday | 62°F | Chance Rain Showers | 17 mph NE | 33% |
| Thursday Night | 53°F | Chance Rain Showers | 12 to 16 mph NE | 35% |
Forecast source: National Weather Service (api.weather.gov) for Mount Vernon (40.913, -73.829). Updated through the day.
Growing snapshot for Mount Vernon
Last spring frost
Apr 1
First fall frost
Nov 16
Growing season
230 days
Hardiness zone
7b
More local growing data for Mount Vernon: nearby ZIP 10553 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Bronx, Ny (5.2 mi from Mount Vernon). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.