Plattsburgh, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plattsburgh, a city in Clinton County, New York.
Today
86°F
Sunny
Sunny, with a high near 86. West wind around 6 mph.
7-day forecast for Plattsburgh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 86°F | Sunny | 6 mph W | 0% |
| Tonight | 63°F | Mostly Clear | 5 mph SW | 1% |
| Wednesday | 87°F | Sunny | 3 to 8 mph S | 0% |
| Wednesday Night | 68°F | Partly Cloudy | 3 to 8 mph S | 6% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 mph S | 62% |
| Thursday Night | 70°F | Showers And Thunderstorms Likely | 3 mph S | 62% |
| Friday | 86°F | Showers And Thunderstorms Likely | 3 mph SW | 66% |
| Friday Night | 68°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 2 mph W | 66% |
| Saturday | 86°F | Chance Showers And Thunderstorms | 1 to 5 mph S | 50% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 50% |
| Sunday | 88°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 23% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 mph SW | 32% |
| Monday | 86°F | Chance Rain Showers | 5 to 9 mph SW | 43% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 43% |
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 Aug 4, 2026.