Groton Long Point, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Groton Long Point, a borough in New London County, Connecticut.
Overnight
54°F
Mostly Cloudy
Mostly cloudy. Low around 54, with temperatures rising to around 56 overnight. Northeast wind around 9 mph.
7-day forecast for Groton Long Point
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Cloudy | 9 mph NE | 0% |
| Saturday | 67°F | Mostly Sunny | 10 mph E | 0% |
| Saturday Night | 55°F | Partly Cloudy | 8 mph E | 0% |
| Sunday | 67°F | Rain | 8 to 12 mph SE | 89% |
| Sunday Night | 57°F | Rain | 8 to 12 mph E | 89% |
| Monday | 65°F | Chance Light Rain | 9 to 15 mph NE | 42% |
| Monday Night | 52°F | Mostly Cloudy | 8 to 13 mph NE | 7% |
| Tuesday | 61°F | Mostly Cloudy | 14 to 17 mph NE | 9% |
| Tuesday Night | 52°F | Mostly Cloudy | 14 to 17 mph NE | 7% |
| Wednesday | 64°F | Partly Sunny | 18 to 24 mph NE | 5% |
| Wednesday Night | 52°F | Chance Rain Showers | 20 to 23 mph NE | 27% |
| Thursday | 63°F | Chance Rain Showers | 23 to 26 mph NE | 34% |
| Thursday Night | 52°F | Chance Rain Showers | 18 to 23 mph NE | 37% |
| Friday | 64°F | Chance Rain Showers | 24 mph N | 33% |
Forecast source: National Weather Service (api.weather.gov) for Groton Long Point (41.314, -72.010). Updated through the day.
Growing snapshot for Groton Long Point
Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7a
More local growing data for Groton Long Point: nearby ZIP 06340 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Baltic
Colchester
Conning Towers-Nautilus Park
Gales Ferry
Groton
Jewett City
Long Hill
Mashantucket
Mystic
New London
Niantic
Noank
Norwich
Old Mystic
Oxoboxo River
Pawcatuck
Poquonock Bridge
Stonington
Waterford
Climate data from the nearest NOAA station, Groton, Ct (0.3 mi from Groton Long Point). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.