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