Katonah, NY Weather & Growing Conditions
This Afternoon
72°F
Sunny
Sunny. High near 72, with temperatures falling to around 66 in the afternoon. South wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 72°F | Sunny | 5 mph S | 0% |
| Tonight | 56°F | Partly Cloudy | 3 mph S | 3% |
| Thursday | 71°F | Light Rain Likely | 3 to 9 mph S | 65% |
| Thursday Night | 60°F | Light Rain Likely | 0 to 5 mph S | 67% |
| Friday | 70°F | Light Rain Likely | 0 to 3 mph W | 55% |
| Friday Night | 49°F | Light Rain Likely | 1 mph NW | 55% |
| Saturday | 65°F | Mostly Sunny then Slight Chance Light Rain | 2 to 7 mph NW | 19% |
| Saturday Night | 41°F | Chance Light Rain | 6 to 9 mph NW | 30% |
| Sunday | 59°F | Chance Light Rain then Mostly Sunny | 7 to 10 mph NW | 30% |
| Sunday Night | 38°F | Partly Cloudy | 8 mph W | 0% |
| Monday | 57°F | Sunny | 8 to 13 mph W | 5% |
| Monday Night | 35°F | Mostly Clear | 5 to 8 mph W | 5% |
| Tuesday | 62°F | Mostly Sunny | 5 to 10 mph W | 1% |
| Tuesday Night | 34°F | Mostly Clear | 3 to 7 mph W | 1% |
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 Nov 5, 2026.