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
82°F
Areas Of Fog then Sunny
Areas of fog before 9am. Sunny, with a high near 82. Southwest wind around 2 mph.
7-day forecast for Mongaup Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Fog then Sunny | 2 mph SW | 0% |
| Tonight | 58°F | Mostly Cloudy then Patchy Fog | 2 mph SE | 0% |
| Wednesday | 80°F | Patchy Fog then Partly Sunny | 0 to 5 mph S | 12% |
| Wednesday Night | 64°F | Chance Showers And Thunderstorms | 0 to 3 mph S | 47% |
| Thursday | 84°F | Showers And Thunderstorms | 0 to 6 mph SW | 81% |
| Thursday Night | 66°F | Showers And Thunderstorms | 0 to 5 mph SW | 81% |
| Friday | 85°F | Showers And Thunderstorms Likely | 0 to 6 mph W | 66% |
| Friday Night | 64°F | Showers And Thunderstorms Likely | 0 to 3 mph W | 66% |
| Saturday | 83°F | Showers And Thunderstorms Likely | 0 to 6 mph W | 57% |
| Saturday Night | 63°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 3 mph W | 57% |
| Sunday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 15% |
| Sunday Night | 64°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph W | 15% |
| Monday | 85°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 9 mph W | 26% |
| Monday Night | 62°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 3 to 7 mph NW | 26% |
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 Aug 4, 2026.