Grahamsville, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grahamsville, a community in Sullivan County, New York.
Today
70°F
Sunny
Sunny. High near 70, with temperatures falling to around 64 in the afternoon. Southwest wind around 7 mph.
7-day forecast for Grahamsville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 70°F | Sunny | 7 mph SW | 2% |
| Tonight | 53°F | Mostly Cloudy | 5 mph SW | 6% |
| Thursday | 65°F | Light Rain | 5 to 8 mph SW | 94% |
| Thursday Night | 53°F | Light Rain Likely | 1 to 5 mph W | 57% |
| Friday | 65°F | Chance Light Rain | 0 to 3 mph SW | 44% |
| Friday Night | 47°F | Chance Light Rain | 2 mph NW | 39% |
| Saturday | 59°F | Chance Light Rain | 2 to 6 mph NW | 39% |
| Saturday Night | 40°F | Chance Light Rain | 5 to 9 mph NW | 39% |
| Sunday | 52°F | Chance Light Rain then Partly Sunny | 6 to 9 mph NW | 26% |
| Sunday Night | 36°F | Partly Cloudy | 5 to 8 mph NW | 8% |
| Monday | 51°F | Slight Chance Light Rain | 8 to 13 mph NW | 17% |
| Monday Night | 35°F | Slight Chance Light Rain then Partly Cloudy | 8 mph W | 17% |
| Tuesday | 57°F | Mostly Sunny | 7 to 10 mph W | 9% |
| Tuesday Night | 35°F | Partly Cloudy | 8 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Grahamsville (41.853, -74.552). Updated through the day.
Growing snapshot for Grahamsville
Last spring frost
May 9
First fall frost
Oct 5
Growing season
149 days
Hardiness zone
6a
More local growing data for Grahamsville: nearby ZIP 12765 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Liberty 1 Ne, Ny (7 mi from Grahamsville). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.