Harman US

Swan Lake, NY Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Swan Lake, a community in Sullivan County, New York.

This Afternoon
67°F
Partly Sunny
Partly sunny, with a high near 67. Southeast wind around 3 mph.

7-day forecast for Swan Lake

WhenTempForecastWindPrecip
This Afternoon 67°F Partly Sunny 3 mph SE 0%
Tonight 51°F Mostly Cloudy then Rain Showers Likely 5 mph SE 58%
Sunday 63°F Rain Showers 7 mph SE 98%
Sunday Night 49°F Rain Showers Likely then Mostly Cloudy 5 mph N 67%
Monday 66°F Mostly Sunny 5 mph NE 1%
Monday Night 43°F Mostly Cloudy then Slight Chance Rain Showers 5 mph NE 22%
Tuesday 59°F Slight Chance Rain Showers 3 to 7 mph E 23%
Tuesday Night 42°F Mostly Cloudy 5 to 9 mph E 5%
Wednesday 58°F Partly Sunny 10 mph E 4%
Wednesday Night 42°F Mostly Cloudy then Slight Chance Rain Showers 8 mph E 19%
Thursday 57°F Slight Chance Rain Showers 9 mph E 20%
Thursday Night 43°F Chance Rain Showers 6 mph NE 32%
Friday 62°F Chance Rain Showers 8 mph N 31%
Friday Night 45°F Chance Rain Showers 6 to 9 mph N 31%

Forecast source: National Weather Service (api.weather.gov) for Swan Lake (41.761, -74.783). Updated through the day.

Growing snapshot for Swan Lake

Last spring frost
May 9
First fall frost
Oct 5
Growing season
149 days
Hardiness zone
6a

More local growing data for Swan Lake: nearby ZIP 12734 weather · frost dates · planting calendar · New York frost dates

Nearby towns & communities

All New York locations ›

Climate data from the nearest NOAA station, Liberty 1 Ne, Ny (4.7 mi from Swan Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.