Copenhagen, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copenhagen, a village in Lewis County, New York.
Today
73°F
Mostly Sunny
Mostly sunny, with a high near 73. South wind around 10 mph.
7-day forecast for Copenhagen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 73°F | Mostly Sunny | 10 mph S | 0% |
| Tonight | 56°F | Mostly Cloudy then Rain Showers Likely | 13 to 18 mph S | 72% |
| Thursday | 66°F | Rain Showers | 6 to 16 mph SW | 95% |
| Thursday Night | 47°F | Mostly Cloudy | 5 mph SW | 11% |
| Friday | 61°F | Mostly Cloudy | 5 mph SW | 14% |
| Friday Night | 41°F | Chance Rain Showers | 3 mph NE | 31% |
| Saturday | 51°F | Chance Rain Showers | 5 to 8 mph N | 50% |
| Saturday Night | 34°F | Chance Rain Showers | 7 mph NW | 50% |
| Sunday | 48°F | Chance Rain Showers | 6 to 10 mph W | 42% |
| Sunday Night | 32°F | Chance Rain Showers | 8 mph W | 37% |
| Monday | 48°F | Chance Rain Showers | 8 to 12 mph W | 37% |
| Monday Night | 32°F | Slight Chance Rain Showers | 8 mph W | 22% |
| Tuesday | 49°F | Chance Rain Showers | 8 to 14 mph SW | 45% |
| Tuesday Night | 30°F | Chance Rain And Snow Showers | 7 to 10 mph W | 45% |
Forecast source: National Weather Service (api.weather.gov) for Copenhagen (43.893, -75.673). Updated through the day.
Growing snapshot for Copenhagen
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
4b
More local growing data for Copenhagen: nearby ZIP 13626 weather · frost dates · planting calendar · New York frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Watertown, Ny (11.5 mi from Copenhagen). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.