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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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
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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.