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.
Today
84°F
Patchy Fog then Sunny
Patchy fog before 9am. Sunny, with a high near 84. Southwest wind around 2 mph.
7-day forecast for Castleton-on-Hudson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Patchy Fog then Sunny | 2 mph SW | 0% |
| Tonight | 60°F | Partly Cloudy then Patchy Fog | 2 mph SE | 0% |
| Wednesday | 83°F | Patchy Fog then Mostly Cloudy | 1 to 6 mph S | 0% |
| Wednesday Night | 66°F | Mostly Cloudy then Chance Rain Showers | 2 to 6 mph S | 19% |
| Thursday | 87°F | Isolated Showers And Thunderstorms | 5 mph S | 80% |
| Thursday Night | 68°F | Showers And Thunderstorms | 3 mph S | 80% |
| Friday | 87°F | Chance Showers And Thunderstorms | 0 to 3 mph SW | 71% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 2 mph SW | 71% |
| Saturday | 85°F | Slight Chance Showers And Thunderstorms | 0 to 3 mph SW | 66% |
| Saturday Night | 66°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 3 mph W | 66% |
| Sunday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 3 mph SW | 16% |
| Sunday Night | 66°F | Slight Chance Showers And Thunderstorms | 3 mph SW | 16% |
| Monday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph SW | 37% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 1 to 6 mph W | 37% |
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 Aug 4, 2026.