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
66°F
Mostly Sunny
Mostly sunny, with a high near 66. Southeast wind around 5 mph.
7-day forecast for Mongaup Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Mostly Sunny | 5 mph SE | 0% |
| Tonight | 44°F | Mostly Cloudy then Light Rain Likely | 5 mph SE | 67% |
| Sunday | 61°F | Rain | 7 mph SE | 100% |
| Sunday Night | 45°F | Rain then Chance Rain Showers | 5 mph NW | 95% |
| Monday | 65°F | Patchy Fog then Partly Sunny | 6 mph NE | 2% |
| Monday Night | 40°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 21% |
| Tuesday | 58°F | Slight Chance Rain Showers | 7 mph E | 22% |
| Tuesday Night | 40°F | Mostly Cloudy | 5 to 10 mph E | 13% |
| Wednesday | 59°F | Mostly Cloudy | 12 mph E | 7% |
| Wednesday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 10 mph E | 24% |
| Thursday | 59°F | Chance Rain Showers | 10 mph NE | 32% |
| Thursday Night | 40°F | Chance Rain Showers | 7 mph NE | 33% |
| Friday | 63°F | Chance Rain Showers | 7 mph NE | 29% |
| Friday Night | 41°F | Chance Rain Showers | 9 mph N | 27% |
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 Sep 19, 2026.