Katonah, NY Weather & Growing Conditions
This Afternoon
70°F
Mostly Sunny
Mostly sunny. High near 70, with temperatures falling to around 68 in the afternoon. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Mostly Sunny | 3 mph SE | 0% |
| Tonight | 54°F | Mostly Cloudy | 3 mph SE | 6% |
| Sunday | 67°F | Rain Showers then Rain | 3 to 8 mph SE | 98% |
| Sunday Night | 52°F | Rain then Rain Showers Likely | 2 to 10 mph SE | 85% |
| Monday | 68°F | Partly Sunny | 6 to 10 mph N | 9% |
| Monday Night | 48°F | Mostly Cloudy then Chance Rain Showers | 6 mph NE | 25% |
| Tuesday | 63°F | Chance Rain Showers | 8 mph NE | 25% |
| Tuesday Night | 47°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 10 mph NE | 18% |
| Wednesday | 64°F | Partly Sunny | 9 to 13 mph NE | 6% |
| Wednesday Night | 47°F | Slight Chance Rain Showers | 12 mph NE | 19% |
| Thursday | 63°F | Chance Rain Showers | 9 to 13 mph NE | 25% |
| Thursday Night | 47°F | Chance Rain Showers | 9 to 15 mph NE | 34% |
| Friday | 64°F | Chance Rain Showers | 10 to 15 mph N | 39% |
| Friday Night | 49°F | Chance Rain Showers | 14 mph N | 37% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Katonah, NY
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
7a
Explore more for Katonah, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Yorktown Hts 1W, Ny (5.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.