Jefferson Valley-Yorktown, NY Weather & Growing Conditions
This Afternoon
71°F
Sunny
Sunny. High near 71, with temperatures falling to around 66 in the afternoon. South wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Sunny | 7 mph S | 0% |
| Tonight | 56°F | Partly Cloudy | 5 mph S | 3% |
| Thursday | 69°F | Light Rain Likely | 5 to 9 mph S | 69% |
| Thursday Night | 59°F | Light Rain Likely | 1 to 5 mph SW | 69% |
| Friday | 69°F | Chance Light Rain | 3 mph W | 53% |
| Friday Night | 49°F | Chance Light Rain | 2 mph NW | 53% |
| Saturday | 64°F | Mostly Sunny then Slight Chance Light Rain | 6 mph NW | 20% |
| Saturday Night | 43°F | Chance Light Rain | 8 mph NW | 30% |
| Sunday | 58°F | Chance Light Rain then Mostly Sunny | 6 to 10 mph NW | 30% |
| Sunday Night | 39°F | Partly Cloudy | 5 to 8 mph W | 0% |
| Monday | 56°F | Sunny | 8 to 13 mph W | 5% |
| Monday Night | 37°F | Mostly Clear | 3 to 7 mph W | 5% |
| Tuesday | 60°F | Sunny | 6 to 10 mph W | 1% |
| Tuesday Night | 37°F | Mostly Clear | 6 mph W | 1% |
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 Nov 4, 2026.