Watertown, NY Weather & Growing Conditions
This Afternoon
67°F
Mostly Sunny
Mostly sunny, with a high near 67. North wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 67°F | Mostly Sunny | 9 mph N | 0% |
| Tonight | 42°F | Mostly Cloudy | 3 to 7 mph NE | 0% |
| Saturday | 65°F | Mostly Sunny | 5 mph NE | 0% |
| Saturday Night | 47°F | Mostly Cloudy then Chance Rain Showers | 3 mph E | 49% |
| Sunday | 62°F | Rain Showers Likely | 3 to 8 mph E | 74% |
| Sunday Night | 45°F | Chance Rain Showers then Partly Cloudy | 3 to 7 mph NE | 28% |
| Monday | 61°F | Mostly Sunny | 8 to 12 mph NE | 0% |
| Monday Night | 43°F | Mostly Cloudy | 6 to 10 mph NE | 1% |
| Tuesday | 63°F | Partly Sunny | 6 to 10 mph NE | 2% |
| Tuesday Night | 43°F | Mostly Cloudy | 3 to 9 mph NE | 4% |
| Wednesday | 64°F | Mostly Sunny | 7 mph E | 10% |
| Wednesday Night | 45°F | Mostly Cloudy then Chance Rain Showers | 6 mph E | 25% |
| Thursday | 63°F | Chance Rain Showers | 3 to 7 mph E | 25% |
| Thursday Night | 47°F | Slight Chance Rain Showers | 2 to 6 mph E | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Watertown, NY
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5a
Explore more for Watertown, NY: full frost dates · planting calendar · New York frost dates
Climate data from the nearest NOAA station, Watertown, Ny (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.