Harman US

Long Hill, CT Weather & Growing Conditions

This Afternoon
67°F
Mostly Cloudy
Mostly cloudy. High near 67, with temperatures falling to around 62 in the afternoon. Southwest wind around 5 mph.

7-day forecast

WhenTempForecastWindPrecip
This Afternoon 67°F Mostly Cloudy 5 mph SW 0%
Tonight 52°F Patchy Fog 5 mph SW 3%
Wednesday 70°F Patchy Fog then Sunny 3 to 12 mph SW 4%
Wednesday Night 56°F Partly Cloudy 5 mph SW 2%
Thursday 71°F Mostly Cloudy then Slight Chance Rain Showers 3 to 10 mph SW 17%
Thursday Night 60°F Rain Showers 7 mph SW 82%
Friday 68°F Showers And Thunderstorms 5 to 8 mph S 92%
Friday Night 56°F Showers And Thunderstorms 6 mph SW 92%
Saturday 65°F Rain Showers Likely 6 to 9 mph NW 71%
Saturday Night 43°F Chance Rain Showers 8 mph NW 36%
Sunday 61°F Slight Chance Rain Showers then Mostly Sunny 7 to 10 mph W 20%
Sunday Night 39°F Partly Cloudy then Slight Chance Light Rain 8 mph W 16%
Monday 59°F Chance Light Rain 8 to 15 mph NW 29%
Monday Night 38°F Chance Light Rain 12 mph W 29%

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 Nov 4, 2026.