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Chelsea, MA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Chelsea, a city in Suffolk County, Massachusetts.

Overnight
53°F
Partly Cloudy
Partly cloudy, with a low around 53. North wind around 7 mph.

7-day forecast for Chelsea

WhenTempForecastWindPrecip
Overnight 53°F Partly Cloudy 7 mph N 0%
Saturday 64°F Mostly Sunny 8 mph NE 0%
Saturday Night 51°F Partly Cloudy 2 to 6 mph S 0%
Sunday 63°F Mostly Cloudy then Rain Showers 2 to 8 mph SE 83%
Sunday Night 53°F Rain Showers 5 to 10 mph E 82%
Monday 64°F Slight Chance Rain Showers then Partly Sunny 8 to 12 mph NE 18%
Monday Night 51°F Mostly Cloudy 3 to 9 mph NE 1%
Tuesday 61°F Partly Sunny 10 to 15 mph NE 2%
Tuesday Night 51°F Mostly Cloudy 7 to 13 mph NE 2%
Wednesday 62°F Partly Sunny 14 to 18 mph NE 2%
Wednesday Night 51°F Mostly Cloudy then Slight Chance Rain Showers 12 to 16 mph NE 19%
Thursday 61°F Chance Rain Showers 15 to 21 mph NE 32%
Thursday Night 51°F Chance Rain Showers 15 to 18 mph NE 35%
Friday 62°F Chance Rain Showers 16 to 21 mph NE 36%

Forecast source: National Weather Service (api.weather.gov) for Chelsea (42.397, -71.031). Updated through the day.

Growing snapshot for Chelsea

Last spring frost
Apr 4
First fall frost
Nov 9
Growing season
218 days
Hardiness zone
7a

More local growing data for Chelsea: nearby ZIP 02150 weather · frost dates · planting calendar · Massachusetts frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Boston Logan Intl Ap, Ma (2.7 mi from Chelsea). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.