Dexter, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dexter, a village in Jefferson County, New York.
Overnight
56°F
Mostly Cloudy
Mostly cloudy, with a low around 56. South wind around 9 mph.
7-day forecast for Dexter
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Mostly Cloudy | 9 mph S | 0% |
| Wednesday | 76°F | Partly Sunny | 9 mph S | 0% |
| Wednesday Night | 57°F | Mostly Cloudy then Rain Showers | 8 to 14 mph S | 77% |
| Thursday | 67°F | Rain Showers | 8 to 13 mph SW | 85% |
| Thursday Night | 48°F | Mostly Cloudy | 6 mph SW | 4% |
| Friday | 62°F | Mostly Cloudy | 2 to 6 mph SW | 12% |
| Friday Night | 40°F | Chance Rain Showers | 2 to 6 mph NE | 35% |
| Saturday | 53°F | Chance Rain Showers | 9 mph N | 47% |
| Saturday Night | 34°F | Chance Rain Showers | 7 mph N | 47% |
| Sunday | 52°F | Chance Rain Showers | 6 to 13 mph W | 35% |
| Sunday Night | 32°F | Chance Rain Showers | 6 to 9 mph W | 34% |
| Monday | 52°F | Chance Rain Showers | 6 to 13 mph W | 34% |
| Monday Night | 33°F | Slight Chance Rain Showers | 5 to 8 mph SW | 21% |
| Tuesday | 53°F | Chance Rain Showers | 8 to 16 mph SW | 40% |
Forecast source: National Weather Service (api.weather.gov) for Dexter (44.011, -76.043). Updated through the day.
Growing snapshot for Dexter
Last spring frost
May 11
First fall frost
Oct 1
Growing season
140 days
Hardiness zone
5a
More local growing data for Dexter: nearby ZIP 13634 weather · frost dates · planting calendar · New York frost dates
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Climate data from the nearest NOAA station, Watertown Intl Ap, Ny (2.9 mi from Dexter). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.