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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.

Tonight
45°F
Partly Cloudy
Partly cloudy, with a low around 45. North wind around 5 mph.

7-day forecast for Swan Lake

WhenTempForecastWindPrecip
Tonight 45°F Partly Cloudy 5 mph N 0%
Saturday 65°F Mostly Sunny 5 mph E 1%
Saturday Night 50°F Mostly Cloudy then Rain Showers Likely 5 mph SE 69%
Sunday 61°F Rain Showers 6 mph SE 99%
Sunday Night 51°F Rain Showers 5 mph N 99%
Monday 64°F Patchy Fog 6 mph NE 19%
Monday Night 45°F Slight Chance Rain Showers 6 mph NE 24%
Tuesday 57°F Chance Rain Showers 8 mph E 30%
Tuesday Night 43°F Chance Rain Showers 6 to 10 mph E 26%
Wednesday 56°F Chance Rain Showers 10 mph E 26%
Wednesday Night 43°F Chance Rain Showers 9 mph E 30%
Thursday 58°F Chance Rain Showers 9 mph E 32%
Thursday Night 46°F Chance Rain Showers 6 mph NE 35%
Friday 65°F Chance Rain Showers 7 mph N 28%

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

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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 19, 2026.