Harman US

Long Hill, CT Weather & Growing Conditions

This Afternoon
68°F
Mostly Sunny
Mostly sunny. High near 68, with temperatures falling to around 66 in the afternoon. East wind around 8 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 68°F Mostly Sunny 8 mph E 0%
Tonight 51°F Partly Cloudy 6 mph E 0%
Sunday 67°F Rain 5 to 8 mph SE 90%
Sunday Night 53°F Rain 6 to 10 mph E 90%
Monday 67°F Chance Light Rain 7 to 12 mph NE 39%
Monday Night 49°F Mostly Cloudy 3 to 9 mph NE 6%
Tuesday 64°F Mostly Cloudy 13 mph NE 9%
Tuesday Night 48°F Mostly Cloudy 10 to 14 mph NE 6%
Wednesday 65°F Partly Sunny 15 to 20 mph NE 5%
Wednesday Night 48°F Chance Rain Showers 14 to 17 mph NE 26%
Thursday 64°F Chance Rain Showers 17 to 22 mph NE 33%
Thursday Night 49°F Chance Rain Showers 15 to 18 mph NE 37%
Friday 65°F Chance Rain Showers 20 mph N 33%
Friday Night 49°F Chance Rain Showers 15 to 18 mph N 35%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Long Hill, CT

Last spring frost
Apr 8
First fall frost
Nov 2
Growing season
207 days
Hardiness zone
7a

Explore more for Long Hill, CT: full frost dates · planting calendar · Connecticut frost dates

Climate data from the nearest NOAA station, Groton, Ct (0.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.