Port Henry, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Henry, a community in Essex County, New York.
Today
82°F
Sunny
Sunny, with a high near 82. South wind 1 to 5 mph.
7-day forecast for Port Henry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Sunny | 1 to 5 mph S | 0% |
| Tonight | 62°F | Mostly Clear | 3 to 7 mph S | 0% |
| Wednesday | 83°F | Mostly Sunny | 2 to 9 mph S | 0% |
| Wednesday Night | 67°F | Partly Cloudy then Slight Chance Rain Showers | 3 to 9 mph S | 21% |
| Thursday | 84°F | Showers And Thunderstorms Likely | 7 mph S | 64% |
| Thursday Night | 69°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 mph S | 64% |
| Friday | 84°F | Showers And Thunderstorms Likely | 3 mph SW | 60% |
| Friday Night | 68°F | Showers And Thunderstorms Likely | 2 mph SW | 60% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 3 mph S | 55% |
| Saturday Night | 67°F | Showers And Thunderstorms Likely | 3 mph SW | 55% |
| Sunday | 85°F | Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 15% |
| Sunday Night | 67°F | Slight Chance Showers And Thunderstorms | 6 mph SW | 24% |
| Monday | 84°F | Chance Rain Showers | 6 to 9 mph SW | 35% |
| Monday Night | 65°F | Chance Rain Showers | 2 to 7 mph SW | 35% |
Forecast source: National Weather Service (api.weather.gov) for Port Henry (44.045, -73.461). Updated through the day.
Growing snapshot for Port Henry
Last spring frost
Apr 30
First fall frost
Oct 17
Growing season
168 days
Hardiness zone
5a
More local growing data for Port Henry: nearby ZIP 12974 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Elizabethtown
Lake Placid
Mineville
Schroon Lake
Westport
Willsboro
Willsboro Point
Wilmington
Witherbee
Climate data from the nearest NOAA station, Vergennes, Vt (13.3 mi from Port Henry). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.