Castleton-on-Hudson, NY Weather & Growing Conditions
Overnight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. North wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Mostly Cloudy | 6 mph N | 1% |
| Saturday | 66°F | Mostly Sunny | 1 to 5 mph N | 0% |
| Saturday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 1 to 7 mph E | 30% |
| Sunday | 61°F | Rain Showers | 5 to 8 mph SE | 97% |
| Sunday Night | 51°F | Rain Showers | 3 to 7 mph NE | 97% |
| Monday | 64°F | Partly Sunny | 8 mph N | 14% |
| Monday Night | 46°F | Mostly Cloudy | 3 to 7 mph N | 6% |
| Tuesday | 62°F | Mostly Cloudy | 3 mph N | 13% |
| Tuesday Night | 44°F | Mostly Cloudy | 3 mph NE | 12% |
| Wednesday | 62°F | Partly Sunny | 6 mph NE | 9% |
| Wednesday Night | 45°F | Slight Chance Rain Showers | 5 mph NE | 24% |
| Thursday | 61°F | Chance Rain Showers | 5 mph NE | 30% |
| Thursday Night | 47°F | Chance Rain Showers | 5 mph N | 31% |
| Friday | 67°F | Chance Rain Showers | 7 mph N | 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 Sep 19, 2026.