Potsdam, NY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Potsdam, a village in St. Lawrence County, New York.

Tonight

38°F

Partly Cloudy

Partly cloudy, with a low around 38. North wind 2 to 6 mph.

7-day forecast for Potsdam

When	Temp	Forecast	Wind	Precip
Tonight	38°F	Partly Cloudy	2 to 6 mph N	0%
Saturday	63°F	Sunny	2 to 6 mph NE	0%
Saturday Night	44°F	Mostly Cloudy then Chance Light Rain	5 mph E	33%
Sunday	62°F	Light Rain Likely	5 mph E	56%
Sunday Night	45°F	Slight Chance Light Rain then Partly Cloudy	0 to 3 mph N	19%
Monday	61°F	Partly Sunny	5 to 8 mph N	0%
Monday Night	42°F	Mostly Cloudy	3 to 7 mph NE	0%
Tuesday	62°F	Partly Sunny	5 to 10 mph NE	1%
Tuesday Night	42°F	Partly Cloudy	2 to 9 mph NE	2%
Wednesday	66°F	Mostly Sunny	3 to 8 mph NE	5%
Wednesday Night	45°F	Partly Cloudy then Slight Chance Rain Showers	1 to 7 mph E	15%
Thursday	65°F	Slight Chance Rain Showers	2 to 6 mph NE	21%
Thursday Night	47°F	Slight Chance Rain Showers	1 to 6 mph NE	21%
Friday	67°F	Slight Chance Rain Showers	2 to 7 mph NE	16%

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

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

All New York locations ›

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 Sep 19, 2026.