Conning Towers-Nautilus Park, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Conning Towers-Nautilus Park, a community in New London County, Connecticut.
This Afternoon
81°F
Sunny
Sunny. High near 81, with temperatures falling to around 78 in the afternoon. Northwest wind around 10 mph.
7-day forecast for Conning Towers-Nautilus Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 10 mph NW | 0% |
| Tonight | 52°F | Partly Cloudy | 5 to 10 mph N | 0% |
| Saturday | 68°F | Mostly Sunny | 10 mph E | 0% |
| Saturday Night | 53°F | Mostly Cloudy | 5 to 9 mph SE | 0% |
| Sunday | 68°F | Showers And Thunderstorms | 6 to 12 mph SE | 81% |
| Sunday Night | 56°F | Showers And Thunderstorms | 3 to 10 mph SE | 90% |
| Monday | 67°F | Rain Showers Likely | 12 mph NE | 58% |
| Monday Night | 51°F | Slight Chance Rain Showers | 5 to 10 mph NE | 23% |
| Tuesday | 64°F | Slight Chance Rain Showers | 14 mph NE | 20% |
| Tuesday Night | 50°F | Mostly Cloudy | 9 to 13 mph NE | 9% |
| Wednesday | 64°F | Partly Sunny then Slight Chance Rain Showers | 14 to 17 mph NE | 15% |
| Wednesday Night | 50°F | Chance Rain Showers | 10 to 15 mph NE | 25% |
| Thursday | 64°F | Chance Rain Showers | 17 mph NE | 31% |
| Thursday Night | 50°F | Chance Rain Showers | 8 to 14 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov) for Conning Towers-Nautilus Park (41.389, -72.064). Updated through the day.
Growing snapshot for Conning Towers-Nautilus Park
Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7a
More local growing data for Conning Towers-Nautilus Park: nearby ZIP 06340 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Baltic
Colchester
Gales Ferry
Groton
Groton Long Point
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 Conning Towers-Nautilus Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.