Potsdam, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potsdam, a village in St. Lawrence County, New York.
This Afternoon
63°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy, with a high near 63. South wind around 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Potsdam
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Slight Chance Rain Showers | 8 mph S | 22% |
| Tonight | 50°F | Slight Chance Rain Showers then Partly Cloudy | 9 mph S | 16% |
| Wednesday | 76°F | Mostly Sunny | 5 to 9 mph SW | 6% |
| Wednesday Night | 52°F | Mostly Cloudy then Chance Light Rain | 6 to 9 mph S | 42% |
| Thursday | 70°F | Rain Showers | 9 to 14 mph SW | 79% |
| Thursday Night | 50°F | Slight Chance Rain Showers | 3 to 9 mph SW | 21% |
| Friday | 61°F | Slight Chance Rain Showers | 3 mph W | 23% |
| Friday Night | 42°F | Chance Light Rain | 3 mph N | 25% |
| Saturday | 52°F | Chance Light Rain | 3 to 7 mph N | 44% |
| Saturday Night | 36°F | Chance Light Rain | 5 mph W | 44% |
| Sunday | 50°F | Chance Light Rain then Partly Sunny | 3 to 8 mph SW | 32% |
| Sunday Night | 33°F | Chance Light Rain | 5 mph SW | 27% |
| Monday | 49°F | Chance Light Rain | 3 to 9 mph W | 30% |
| Monday Night | 33°F | Chance Light Rain | 7 mph SW | 30% |
Forecast source: National Weather Service (api.weather.gov) for Potsdam (44.671, -74.983). Updated through the day.
Growing snapshot for Potsdam
Last spring frost
May 5
First fall frost
Oct 8
Growing season
156 days
Hardiness zone
4b
More local growing data for Potsdam: nearby ZIP 13699 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Brasher Falls
Canton
Colton
Cranberry Lake
DeKalb Junction
Edwards
Gouverneur
Hailesboro
Hammond
Hannawa Falls
Hermon
Heuvelton
Madrid
Massena
Norfolk
Norwood
Ogdensburg
Parishville
Rensselaer Falls
Richville
Star Lake
Waddington
Winthrop
Climate data from the nearest NOAA station, Colton 2 N, Ny (5.9 mi from Potsdam). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.