Castleton-on-Hudson, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Castleton-on-Hudson, a village in Rensselaer County, New York.
This Afternoon
66°F
Mostly Cloudy
Mostly cloudy, with a high near 66. South wind around 5 mph.
7-day forecast for Castleton-on-Hudson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Cloudy | 5 mph S | 7% |
| Tonight | 48°F | Partly Cloudy | 3 mph SE | 6% |
| Wednesday | 71°F | Mostly Sunny | 2 to 7 mph S | 4% |
| Wednesday Night | 57°F | Mostly Cloudy | 7 mph S | 2% |
| Thursday | 68°F | Light Rain Likely | 9 mph S | 65% |
| Thursday Night | 58°F | Light Rain Likely | 1 to 7 mph S | 57% |
| Friday | 66°F | Light Rain Likely | 2 mph W | 60% |
| Friday Night | 48°F | Light Rain Likely | 3 mph NW | 62% |
| Saturday | 61°F | Light Rain Likely | 5 mph NW | 60% |
| Saturday Night | 41°F | Chance Light Rain | 2 mph NW | 30% |
| Sunday | 58°F | Chance Light Rain then Partly Sunny | 6 mph NW | 27% |
| Sunday Night | 37°F | Mostly Cloudy then Slight Chance Light Rain | 3 mph NW | 18% |
| Monday | 55°F | Chance Light Rain | 2 to 6 mph NW | 34% |
| Monday Night | 36°F | Chance Light Rain | 5 mph NW | 34% |
Forecast source: National Weather Service (api.weather.gov) for Castleton-on-Hudson (42.537, -73.748). Updated through the day.
Growing snapshot for Castleton-on-Hudson
Last spring frost
Apr 27
First fall frost
Oct 14
Growing season
171 days
Hardiness zone
6a
More local growing data for Castleton-on-Hudson: nearby ZIP 12033 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Averill Park
East Greenbush
East Nassau
Hampton Manor
Hoosick Falls
Nassau
Nassau Lake
Poestenkill
Schaghticoke
Stillwater
Valley Falls
West Sand Lake
Wynantskill
Climate data from the nearest NOAA station, Valatie 1 N, Ny (6.9 mi from Castleton-on-Hudson). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.