Mongaup Valley, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mongaup Valley, a community in Sullivan County, New York.
Today
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 64 in the afternoon. South wind 1 to 7 mph.
7-day forecast for Mongaup Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Sunny | 1 to 7 mph S | 1% |
| Tonight | 52°F | Mostly Cloudy | 5 mph S | 8% |
| Thursday | 66°F | Light Rain | 8 mph S | 92% |
| Thursday Night | 53°F | Chance Light Rain | 0 to 5 mph SW | 52% |
| Friday | 66°F | Chance Light Rain | 0 to 3 mph W | 43% |
| Friday Night | 44°F | Chance Light Rain | 2 mph N | 43% |
| Saturday | 59°F | Chance Light Rain | 2 to 7 mph NW | 38% |
| Saturday Night | 36°F | Chance Light Rain | 6 to 9 mph NW | 38% |
| Sunday | 52°F | Slight Chance Light Rain then Partly Sunny | 9 mph NW | 22% |
| Sunday Night | 31°F | Partly Cloudy | 8 mph W | 8% |
| Monday | 53°F | Slight Chance Light Rain | 8 to 12 mph NW | 16% |
| Monday Night | 29°F | Slight Chance Light Rain then Partly Cloudy | 5 to 8 mph W | 16% |
| Tuesday | 57°F | Mostly Sunny | 6 to 10 mph W | 6% |
| Tuesday Night | 29°F | Partly Cloudy | 7 mph W | 9% |
Forecast source: National Weather Service (api.weather.gov) for Mongaup Valley (41.680, -74.780). Updated through the day.
Growing snapshot for Mongaup Valley
Last spring frost
May 9
First fall frost
Oct 5
Growing season
149 days
Hardiness zone
6a
More local growing data for Mongaup Valley: nearby ZIP 12762 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Barryville
Bloomingburg
Bridgeville
Eldred
Fallsburg
Grahamsville
Hankins
Hortonville
Hurleyville
Jeffersonville
Kauneonga Lake
Kiamesha Lake
Lake Huntington
Liberty
Livingston Manor
Loch Sheldrake
Monticello
Mountain Dale
Rock Hill
Smallwood
South Fallsburg
Swan Lake
White Lake
Woodbourne
Woodridge
Wurtsboro
Wurtsboro Hills
Climate data from the nearest NOAA station, Liberty 1 Ne, Ny (10.1 mi from Mongaup Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.