Harman US

Shirley, MA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Shirley, a community in Middlesex County, Massachusetts.

Tonight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. North wind around 5 mph.

7-day forecast for Shirley

WhenTempForecastWindPrecip
Tonight 46°F Partly Cloudy 5 mph N 0%
Saturday 66°F Sunny 2 mph NE 0%
Saturday Night 43°F Partly Cloudy 2 mph S 2%
Sunday 63°F Rain Showers 0 to 5 mph S 84%
Sunday Night 51°F Rain Showers 1 to 6 mph E 83%
Monday 65°F Slight Chance Rain Showers then Partly Sunny 8 mph N 21%
Monday Night 47°F Partly Cloudy 2 to 6 mph NE 5%
Tuesday 60°F Partly Sunny 8 mph NE 5%
Tuesday Night 45°F Mostly Cloudy 2 to 7 mph NE 2%
Wednesday 60°F Partly Sunny 7 to 12 mph NE 6%
Wednesday Night 45°F Mostly Cloudy then Slight Chance Rain Showers 5 to 8 mph NE 19%
Thursday 59°F Chance Rain Showers 7 to 10 mph NE 28%
Thursday Night 47°F Chance Rain Showers 3 to 8 mph NE 33%
Friday 63°F Chance Rain Showers 9 mph N 33%

Forecast source: National Weather Service (api.weather.gov) for Shirley (42.536, -71.667). Updated through the day.

Growing snapshot for Shirley

Last spring frost
Apr 29
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
6a

More local growing data for Shirley: nearby ZIP 01464 weather · frost dates · planting calendar · Massachusetts frost dates

Nearby towns & communities

All Massachusetts locations ›

Climate data from the nearest NOAA station, Fitchburg Muni Ap, Ma (6 mi from Shirley). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.