Port Henry, NY Weather & Growing Conditions
Today
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 65 in the afternoon. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 7 mph S | 2% |
| Tonight | 52°F | Mostly Cloudy | 8 mph SW | 2% |
| Thursday | 64°F | Rain Showers | 9 mph S | 100% |
| Thursday Night | 48°F | Chance Rain Showers then Patchy Fog | 3 to 8 mph SW | 29% |
| Friday | 63°F | Patchy Fog then Mostly Cloudy | 3 mph S | 11% |
| Friday Night | 44°F | Chance Light Rain | 2 to 6 mph N | 37% |
| Saturday | 54°F | Chance Light Rain | 6 mph N | 52% |
| Saturday Night | 37°F | Chance Light Rain | 7 mph N | 52% |
| Sunday | 51°F | Chance Light Rain | 6 mph NW | 44% |
| Sunday Night | 32°F | Mostly Cloudy then Slight Chance Light Rain | 7 mph W | 16% |
| Monday | 50°F | Chance Light Rain | 8 mph W | 26% |
| Monday Night | 29°F | Slight Chance Light Rain then Mostly Cloudy | 6 mph W | 16% |
| Tuesday | 52°F | Chance Light Rain | 9 mph SW | 35% |
| Tuesday Night | 29°F | Chance Light Rain | 7 mph W | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Henry, NY
Last spring frost
May 5
First fall frost
Oct 3
Growing season
151 days
Hardiness zone
4b
Explore more for Port Henry, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Cornwall, Vt (18.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.