Armonk, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Armonk, a community in Westchester County, New York.
Tonight
50°F
Patchy Fog
Patchy fog after 11pm. Partly cloudy, with a low around 50. Southwest wind around 3 mph.
7-day forecast for Armonk
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Patchy Fog | 3 mph SW | 3% |
| Wednesday | 72°F | Patchy Fog then Sunny | 3 to 10 mph SW | 3% |
| Wednesday Night | 56°F | Partly Cloudy | 6 mph S | 2% |
| Thursday | 71°F | Chance Rain Showers | 5 to 9 mph S | 50% |
| Thursday Night | 60°F | Rain Showers | 6 mph S | 81% |
| Friday | 67°F | Rain Showers | 5 mph SW | 82% |
| Friday Night | 53°F | Showers And Thunderstorms | 5 mph NW | 82% |
| Saturday | 65°F | Chance Rain Showers | 7 mph NW | 49% |
| Saturday Night | 41°F | Slight Chance Rain Showers | 7 mph NW | 18% |
| Sunday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 8 mph W | 18% |
| Sunday Night | 38°F | Partly Cloudy then Slight Chance Light Rain | 7 mph W | 15% |
| Monday | 59°F | Slight Chance Light Rain | 7 to 13 mph NW | 23% |
| Monday Night | 37°F | Chance Light Rain | 8 mph W | 26% |
| Tuesday | 60°F | Slight Chance Light Rain then Mostly Sunny | 8 to 13 mph W | 18% |
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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Briarcliff Manor
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Chappaqua
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Croton-on-Hudson
Crugers
Dobbs Ferry
Eastchester
Elmsford
Fairview
Golden's Bridge
Greenville
Harrison
Hartsdale
Hastings-on-Hudson
Hawthorne
Heritage Hills
Irvington
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Katonah
Lake Mohegan
Larchmont
Lincolndale
Mamaroneck
Millwood
Montrose
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 Nov 4, 2026.