Copenhagen, NY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copenhagen, a village in Lewis County, New York.
Overnight
45°F
Chance Rain Showers
A chance of rain showers after 3am. Mostly cloudy. Low around 45, with temperatures rising to around 51 overnight. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Copenhagen
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Chance Rain Showers | 8 mph S | 48% |
| Sunday | 59°F | Rain Showers | 8 mph SE | 96% |
| Sunday Night | 42°F | Mostly Cloudy | 7 mph N | 0% |
| Monday | 57°F | Partly Sunny | 9 mph N | 0% |
| Monday Night | 39°F | Mostly Cloudy | 3 to 9 mph NE | 0% |
| Tuesday | 62°F | Mostly Sunny | 5 to 8 mph NE | 0% |
| Tuesday Night | 41°F | Partly Cloudy | 5 to 8 mph E | 1% |
| Wednesday | 65°F | Mostly Sunny | 7 mph E | 1% |
| Wednesday Night | 41°F | Partly Cloudy | 7 mph E | 3% |
| Thursday | 64°F | Mostly Sunny | 6 mph E | 5% |
| Thursday Night | 42°F | Mostly Cloudy | 6 mph E | 12% |
| Friday | 64°F | Partly Sunny then Slight Chance Rain Showers | 3 to 8 mph NE | 22% |
| Friday Night | 44°F | Slight Chance Rain Showers | 3 to 8 mph NE | 22% |
| Saturday | 66°F | Partly Sunny | 5 to 9 mph N | 13% |
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 Sep 20, 2026.