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.
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. South wind around 8 mph.
7-day forecast for Port Henry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 8 mph S | 5% |
| Wednesday | 72°F | Mostly Sunny | 7 to 10 mph S | 4% |
| Wednesday Night | 56°F | Mostly Cloudy | 9 mph S | 2% |
| Thursday | 66°F | Rain Showers | 8 to 13 mph S | 95% |
| Thursday Night | 53°F | Chance Rain Showers then Patchy Fog | 5 to 9 mph SW | 35% |
| Friday | 64°F | Patchy Fog then Mostly Cloudy | 1 to 6 mph S | 10% |
| Friday Night | 49°F | Chance Light Rain | 5 to 9 mph N | 39% |
| Saturday | 55°F | Chance Light Rain | 8 mph N | 51% |
| Saturday Night | 44°F | Chance Light Rain | 7 mph N | 51% |
| Sunday | 52°F | Chance Light Rain | 6 mph NW | 42% |
| Sunday Night | 39°F | Mostly Cloudy then Slight Chance Light Rain | 5 mph W | 16% |
| Monday | 51°F | Slight Chance Light Rain | 3 to 8 mph W | 22% |
| Monday Night | 36°F | Slight Chance Light Rain then Partly Cloudy | 5 mph SW | 16% |
| Tuesday | 54°F | Chance Light Rain | 5 to 9 mph SW | 30% |
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 Nov 4, 2026.