Plattsburgh, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plattsburgh, a city in Clinton County, New York.
Today
71°F
Mostly Sunny
Mostly sunny. High near 71, with temperatures falling to around 64 in the afternoon. South wind 6 to 9 mph.
7-day forecast for Plattsburgh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 6 to 9 mph S | 6% |
| Tonight | 53°F | Mostly Cloudy | 6 to 9 mph S | 3% |
| Thursday | 65°F | Rain Showers | 7 to 12 mph S | 94% |
| Thursday Night | 50°F | Chance Rain Showers then Patchy Fog | 6 mph SW | 47% |
| Friday | 62°F | Patchy Fog then Mostly Cloudy | 5 mph SE | 7% |
| Friday Night | 44°F | Chance Light Rain | 2 to 6 mph N | 34% |
| Saturday | 52°F | Chance Light Rain | 8 mph N | 48% |
| Saturday Night | 39°F | Chance Light Rain | 6 mph NW | 48% |
| Sunday | 50°F | Chance Light Rain | 5 to 8 mph NW | 44% |
| Sunday Night | 36°F | Mostly Cloudy then Slight Chance Light Rain | 6 mph W | 17% |
| Monday | 48°F | Slight Chance Light Rain | 6 to 12 mph W | 23% |
| Monday Night | 33°F | Mostly Cloudy | 6 mph SW | 12% |
| Tuesday | 52°F | Chance Light Rain | 6 to 10 mph SW | 33% |
| Tuesday Night | 33°F | Chance Light Rain | 7 mph W | 33% |
Forecast source: National Weather Service (api.weather.gov) for Plattsburgh (44.692, -73.458). Updated through the day.
Growing snapshot for Plattsburgh
Last spring frost
May 6
First fall frost
Oct 5
Growing season
152 days
Hardiness zone
5a
More local growing data for Plattsburgh: nearby ZIP 12901 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Altona
Au Sable Forks
Cadyville
Champlain
Chazy
Cumberland Head
Dannemora
Keeseville
Lyon Mountain
Mooers
Morrisonville
Parc
Peru
Plattsburgh West
Redford
Rouses Point
West Chazy
Climate data from the nearest NOAA station, Plattsburgh Intl Ap, Ny (4.1 mi from Plattsburgh). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.