Jefferson, NY Weather & Growing Conditions
This Afternoon
68°F
Sunny
Sunny, with a high near 68. Northwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 68°F | Sunny | 7 mph NW | 0% |
| Tonight | 41°F | Mostly Cloudy | 2 to 6 mph N | 0% |
| Saturday | 63°F | Mostly Sunny | 5 mph E | 0% |
| Saturday Night | 47°F | Mostly Cloudy then Rain Showers Likely | 2 to 6 mph SE | 69% |
| Sunday | 58°F | Rain Showers | 6 mph S | 99% |
| Sunday Night | 46°F | Rain Showers | 5 mph N | 94% |
| Monday | 58°F | Partly Sunny | 7 mph NE | 4% |
| Monday Night | 41°F | Mostly Cloudy | 5 mph NE | 9% |
| Tuesday | 54°F | Chance Rain Showers | 7 mph E | 27% |
| Tuesday Night | 40°F | Slight Chance Rain Showers then Mostly Cloudy | 7 mph E | 20% |
| Wednesday | 54°F | Partly Sunny then Slight Chance Rain Showers | 8 mph E | 20% |
| Wednesday Night | 41°F | Chance Rain Showers | 6 mph E | 30% |
| Thursday | 55°F | Chance Rain Showers | 7 mph E | 30% |
| Thursday Night | 43°F | Chance Rain Showers | 5 mph NE | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jefferson, NY
Last spring frost
May 18
First fall frost
Oct 2
Growing season
137 days
Hardiness zone
5b
Explore more for Jefferson, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Lansing Manor, Ny (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.