Alexandria Bay, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexandria Bay, a village in Jefferson County, New York.
This Afternoon
66°F
Mostly Sunny
Mostly sunny, with a high near 66. North wind around 10 mph.
7-day forecast for Alexandria Bay
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 10 mph N | 0% |
| Tonight | 44°F | Mostly Cloudy | 7 mph N | 0% |
| Saturday | 63°F | Sunny | 5 mph NE | 0% |
| Saturday Night | 51°F | Mostly Cloudy then Chance Rain Showers | 3 mph E | 41% |
| Sunday | 62°F | Chance Rain Showers | 3 to 7 mph NE | 54% |
| Sunday Night | 49°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 8 mph N | 15% |
| Monday | 60°F | Mostly Sunny | 9 mph N | 0% |
| Monday Night | 44°F | Mostly Cloudy | 3 to 8 mph NE | 1% |
| Tuesday | 62°F | Partly Sunny | 9 mph NE | 2% |
| Tuesday Night | 44°F | Partly Cloudy | 2 to 8 mph NE | 3% |
| Wednesday | 65°F | Mostly Sunny | 3 to 7 mph NE | 6% |
| Wednesday Night | 46°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 6 mph E | 21% |
| Thursday | 64°F | Slight Chance Rain Showers | 2 to 6 mph NE | 21% |
| Thursday Night | 48°F | Slight Chance Rain Showers | 1 to 5 mph NE | 23% |
Forecast source: National Weather Service (api.weather.gov) for Alexandria Bay (44.337, -75.923). Updated through the day.
Growing snapshot for Alexandria Bay
Last spring frost
May 14
First fall frost
Sep 26
Growing season
134 days
Hardiness zone
5a
More local growing data for Alexandria Bay: nearby ZIP 13607 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Gouverneur 3 Nw, Ny (19.7 mi from Alexandria Bay). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.