Long Hill, CT Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Long Hill, a community in New London County, Connecticut.
Today
82°F
Mostly Sunny
Mostly sunny. High near 82, with temperatures falling to around 80 in the afternoon. Southwest wind 2 to 6 mph.
7-day forecast for Long Hill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Mostly Sunny | 2 to 6 mph SW | 0% |
| Tonight | 62°F | Mostly Cloudy | 3 mph N | 10% |
| Wednesday | 82°F | Mostly Sunny | 2 to 6 mph SW | 8% |
| Wednesday Night | 69°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph S | 18% |
| Thursday | 86°F | Mostly Sunny | 2 to 9 mph SW | 13% |
| Thursday Night | 73°F | Mostly Clear | 3 to 8 mph SW | 12% |
| Friday | 88°F | Sunny | 3 to 9 mph SW | 12% |
| Friday Night | 71°F | Slight Chance Showers And Thunderstorms | 3 to 7 mph SW | 19% |
| Saturday | 86°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 9 mph SW | 21% |
| Saturday Night | 71°F | Slight Chance Showers And Thunderstorms | 2 to 7 mph SW | 21% |
| Sunday | 86°F | Mostly Sunny | 3 to 9 mph W | 11% |
| Sunday Night | 71°F | Mostly Clear | 3 to 7 mph SW | 8% |
| Monday | 87°F | Sunny | 3 to 12 mph SW | 10% |
| Monday Night | 69°F | Mostly Clear | 5 to 9 mph W | 11% |
Forecast source: National Weather Service (api.weather.gov) for Long Hill (41.350, -72.051). Updated through the day.
Growing snapshot for Long Hill
Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7a
More local growing data for Long Hill: nearby ZIP 06340 weather · frost dates · planting calendar · Connecticut frost dates
Nearby towns & communities
Baltic
Colchester
Conning Towers-Nautilus Park
Gales Ferry
Groton
Groton Long Point
Jewett City
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 Long Hill). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.