Henderson, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Henderson, a community in Jefferson County, New York.
Overnight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. Northeast wind around 8 mph.
7-day forecast for Henderson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Cloudy | 8 mph NE | 0% |
| Saturday | 65°F | Mostly Sunny | 3 to 8 mph NE | 0% |
| Saturday Night | 50°F | Mostly Cloudy then Chance Rain Showers | 6 mph E | 48% |
| Sunday | 64°F | Rain Showers Likely | 6 to 10 mph E | 74% |
| Sunday Night | 48°F | Chance Rain Showers then Partly Cloudy | 7 to 12 mph NE | 27% |
| Monday | 62°F | Mostly Sunny | 14 mph NE | 0% |
| Monday Night | 46°F | Mostly Cloudy | 9 to 13 mph NE | 2% |
| Tuesday | 63°F | Partly Sunny | 12 mph NE | 4% |
| Tuesday Night | 47°F | Mostly Cloudy | 6 to 12 mph NE | 6% |
| Wednesday | 63°F | Mostly Sunny | 8 mph E | 12% |
| Wednesday Night | 48°F | Chance Rain Showers | 8 mph E | 27% |
| Thursday | 63°F | Chance Rain Showers | 6 to 9 mph E | 27% |
| Thursday Night | 50°F | Chance Rain Showers | 6 to 9 mph NE | 25% |
| Friday | 66°F | Slight Chance Rain Showers then Mostly Sunny | 6 to 9 mph N | 22% |
Forecast source: National Weather Service (api.weather.gov) for Henderson (43.848, -76.185). Updated through the day.
Growing snapshot for Henderson
Last spring frost
May 11
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
5b
More local growing data for Henderson: nearby ZIP 13651 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Watertown Intl Ap, Ny (11.6 mi from Henderson). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.