Plessis, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Plessis, a community in Jefferson County, New York.
This Afternoon
66°F
Mostly Sunny
Mostly sunny, with a high near 66. North wind around 10 mph.
7-day forecast for Plessis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 41°F | Mostly Cloudy | 3 to 7 mph N | 0% |
| Saturday | 63°F | Sunny | 6 mph NE | 0% |
| Saturday Night | 46°F | Mostly Cloudy then Chance Rain Showers | 3 mph E | 42% |
| Sunday | 62°F | Rain Showers Likely | 3 to 7 mph E | 59% |
| Sunday Night | 45°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 8 mph N | 19% |
| Monday | 60°F | Mostly Sunny | 10 mph NE | 0% |
| Monday Night | 43°F | Mostly Cloudy | 8 mph NE | 1% |
| Tuesday | 62°F | Partly Sunny | 7 to 10 mph NE | 2% |
| Tuesday Night | 43°F | Partly Cloudy | 3 to 9 mph NE | 3% |
| Wednesday | 65°F | Mostly Sunny | 5 to 8 mph NE | 6% |
| Wednesday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 6 mph E | 21% |
| Thursday | 64°F | Slight Chance Rain Showers | 3 to 7 mph NE | 22% |
| Thursday Night | 47°F | Slight Chance Rain Showers | 2 to 7 mph NE | 24% |
Forecast source: National Weather Service (api.weather.gov) for Plessis (44.274, -75.857). Updated through the day.
Growing snapshot for Plessis
Last spring frost
May 14
First fall frost
Sep 26
Growing season
134 days
Hardiness zone
5a
More local growing data for Plessis: nearby ZIP 13675 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Gouverneur 3 Nw, Ny (17.2 mi from Plessis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.