Thousand Island Park, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Thousand Island Park, a community in Jefferson County, New York.
Today
63°F
Mostly Sunny
Mostly sunny, with a high near 63. Northeast wind around 6 mph.
7-day forecast for Thousand Island Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Mostly Sunny | 6 mph NE | 0% |
| Tonight | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph E | 16% |
| Sunday | 57°F | Rain Showers | 3 to 9 mph NE | 81% |
| Sunday Night | 45°F | Mostly Cloudy | 5 to 10 mph N | 0% |
| Monday | 58°F | Partly Sunny | 10 mph N | 0% |
| Monday Night | 43°F | Mostly Cloudy | 8 mph NE | 0% |
| Tuesday | 60°F | Partly Sunny | 10 mph NE | 0% |
| Tuesday Night | 43°F | Partly Cloudy | 6 to 10 mph NE | 1% |
| Wednesday | 65°F | Mostly Sunny | 8 mph E | 2% |
| Wednesday Night | 46°F | Mostly Cloudy | 5 to 8 mph E | 7% |
| Thursday | 64°F | Partly Sunny | 5 to 8 mph NE | 9% |
| Thursday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 8 mph NE | 15% |
| Friday | 65°F | Slight Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 15% |
| Friday Night | 47°F | Mostly Cloudy | 8 mph NE | 14% |
Forecast source: National Weather Service (api.weather.gov) for Thousand Island Park (44.286, -76.026). Updated through the day.
Growing snapshot for Thousand Island Park
Last spring frost
May 11
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
5a
More local growing data for Thousand Island Park: nearby ZIP 13692 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Watertown Intl Ap, Ny (20.5 mi from Thousand Island Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.