Jefferson Valley-Yorktown, NY Weather & Growing Conditions
This Afternoon
69°F
Mostly Sunny
Mostly sunny. High near 69, with temperatures falling to around 67 in the afternoon. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Mostly Sunny | 5 mph E | 0% |
| Tonight | 54°F | Mostly Cloudy | 3 mph SE | 7% |
| Sunday | 66°F | Rain | 3 to 7 mph SE | 91% |
| Sunday Night | 53°F | Rain | 3 to 9 mph E | 87% |
| Monday | 66°F | Partly Sunny | 7 to 10 mph N | 14% |
| Monday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph NE | 19% |
| Tuesday | 61°F | Slight Chance Rain Showers | 8 mph NE | 22% |
| Tuesday Night | 46°F | Slight Chance Rain Showers then Mostly Cloudy | 6 to 9 mph NE | 22% |
| Wednesday | 62°F | Partly Sunny then Slight Chance Rain Showers | 9 to 13 mph NE | 16% |
| Wednesday Night | 46°F | Chance Rain Showers | 12 mph NE | 28% |
| Thursday | 61°F | Chance Rain Showers | 13 mph NE | 32% |
| Thursday Night | 47°F | Chance Rain Showers | 13 mph N | 37% |
| Friday | 63°F | Chance Rain Showers | 13 mph N | 35% |
| Friday Night | 48°F | Chance Rain Showers | 10 to 14 mph N | 32% |
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 Sep 19, 2026.