Jefferson Valley-Yorktown, NY Weather & Growing Conditions
This Afternoon
82°F
Mostly Sunny
Mostly sunny, with a high near 82. South wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Mostly Sunny | 2 mph S | 0% |
| Tonight | 62°F | Mostly Cloudy | 2 mph S | 0% |
| Wednesday | 81°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 mph SW | 22% |
| Wednesday Night | 68°F | Chance Showers And Thunderstorms | 5 mph S | 32% |
| Thursday | 86°F | Showers And Thunderstorms Likely | 2 to 7 mph SW | 56% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 52% |
| Friday | 87°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 6 mph SW | 45% |
| Friday Night | 69°F | Chance Showers And Thunderstorms | 3 mph SW | 42% |
| Saturday | 85°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 6 mph W | 37% |
| Saturday Night | 68°F | Chance Showers And Thunderstorms | 1 to 5 mph W | 37% |
| Sunday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 6 mph W | 15% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 3 mph SW | 15% |
| Monday | 87°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 8 mph W | 16% |
| Monday Night | 68°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph W | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson Valley-Yorktown, NY
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
174 days
Hardiness zone
6b
Explore more for Jefferson Valley-Yorktown, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Yorktown Hts 1W, Ny (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.