Castleton-on-Hudson, NY Weather & Growing Conditions
This Afternoon
66°F
Mostly Cloudy
Mostly cloudy, with a high near 66. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Cloudy | 3 mph S | 3% |
| Tonight | 50°F | Mostly Cloudy | 5 mph SE | 6% |
| Wednesday | 71°F | Sunny | 3 to 10 mph S | 4% |
| Wednesday Night | 57°F | Mostly Cloudy | 9 mph S | 4% |
| Thursday | 67°F | Rain Showers | 8 to 12 mph S | 85% |
| Thursday Night | 59°F | Chance Rain Showers | 2 to 7 mph SW | 36% |
| Friday | 65°F | Chance Rain Showers then Light Rain Likely | 2 mph NW | 61% |
| Friday Night | 51°F | Light Rain Likely | 3 mph NW | 61% |
| Saturday | 60°F | Chance Light Rain | 5 mph NW | 51% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 43% |
| Sunday | 56°F | Chance Light Rain | 3 to 8 mph NW | 32% |
| Sunday Night | 36°F | Slight Chance Light Rain | 3 mph W | 21% |
| Monday | 55°F | Chance Light Rain | 3 to 10 mph NW | 26% |
| Monday Night | 34°F | Chance Light Rain | 6 mph SW | 27% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Castleton-on-Hudson, NY
Last spring frost
Apr 27
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a
Explore more for Castleton-on-Hudson, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Valatie 1 N, Ny (6.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.