Armonk, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Armonk, a community in Westchester County, New York.
Today
83°F
Mostly Sunny
Mostly sunny, with a high near 83. East wind around 5 mph.
7-day forecast for Armonk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 63°F | Mostly Cloudy | 3 mph S | 1% |
| Wednesday | 82°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 6 mph SE | 24% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 5 mph S | 30% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 3 to 8 mph SW | 49% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SW | 47% |
| Friday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph SW | 43% |
| Friday Night | 70°F | Chance Showers And Thunderstorms | 5 mph SW | 41% |
| Saturday | 86°F | Partly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph W | 35% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 6 mph W | 35% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph W | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph SW | 15% |
| Monday | 88°F | Sunny | 3 to 9 mph W | 14% |
| Monday Night | 68°F | Slight Chance Rain Showers | 5 to 8 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov) for Armonk (41.133, -73.719). Updated through the day.
Growing snapshot for Armonk
Last spring frost
Apr 12
First fall frost
Oct 31
Growing season
200 days
Hardiness zone
7a
More local growing data for Armonk: nearby ZIP 10504 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
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Eastchester
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Hastings-on-Hudson
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Mamaroneck
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Climate data from the nearest NOAA station, Westchester Co Ap, Ny (4.3 mi from Armonk). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.