Katonah, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Katonah, a community in Westchester County, New York.
Today
69°F
Partly Sunny
Partly sunny, with a high near 69. East wind around 6 mph.
7-day forecast for Katonah
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Partly Sunny | 6 mph E | 0% |
| Tonight | 53°F | Mostly Cloudy | 5 mph SE | 5% |
| Sunday | 67°F | Rain | 3 to 7 mph SE | 94% |
| Sunday Night | 52°F | Rain | 3 to 9 mph E | 90% |
| Monday | 66°F | Slight Chance Light Rain then Partly Sunny | 7 to 10 mph N | 17% |
| Monday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph NE | 19% |
| Tuesday | 62°F | Slight Chance Rain Showers | 9 mph NE | 23% |
| Tuesday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 23% |
| Wednesday | 63°F | Partly Sunny then Slight Chance Rain Showers | 10 to 14 mph NE | 17% |
| Wednesday Night | 46°F | Chance Rain Showers | 13 mph NE | 29% |
| Thursday | 62°F | Chance Rain Showers | 14 mph NE | 32% |
| Thursday Night | 46°F | Chance Rain Showers | 13 mph N | 38% |
| Friday | 64°F | Chance Rain Showers | 13 mph N | 36% |
| Friday Night | 47°F | Chance Rain Showers | 14 mph N | 32% |
Forecast source: National Weather Service (api.weather.gov) for Katonah (41.255, -73.685). Updated through the day.
Growing snapshot for Katonah
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
7a
More local growing data for Katonah: nearby ZIP 10536 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Yorktown Hts 1W, Ny (5.7 mi from Katonah). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.