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Shirley, MA Weather & Growing Conditions

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

Today
66°F
Mostly Sunny
Mostly sunny, with a high near 66. East wind around 2 mph.

7-day forecast for Shirley

WhenTempForecastWindPrecip
Today 66°F Mostly Sunny 2 mph E 0%
Tonight 45°F Partly Cloudy 2 mph S 0%
Sunday 60°F Mostly Cloudy then Chance Rain Showers 0 to 5 mph SE 86%
Sunday Night 47°F Rain Showers 2 to 6 mph NE 83%
Monday 66°F Partly Sunny 8 mph N 9%
Monday Night 44°F Mostly Cloudy 1 to 5 mph N 0%
Tuesday 61°F Partly Sunny 5 to 8 mph NE 2%
Tuesday Night 43°F Mostly Cloudy 2 to 6 mph NE 2%
Wednesday 62°F Partly Sunny 7 to 12 mph NE 2%
Wednesday Night 43°F Mostly Cloudy then Slight Chance Rain Showers 3 to 8 mph NE 19%
Thursday 60°F Chance Rain Showers 10 mph NE 32%
Thursday Night 44°F Chance Rain Showers 7 to 12 mph NE 35%
Friday 62°F Chance Rain Showers 12 mph N 35%
Friday Night 45°F Chance Rain Showers 7 to 12 mph N 35%

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

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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.