Shirley, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shirley, a community in Middlesex County, Massachusetts.
Today
84°F
Sunny
Sunny, with a high near 84. West wind around 5 mph.
7-day forecast for Shirley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Sunny | 5 mph W | 0% |
| Tonight | 59°F | Partly Cloudy | 3 mph SW | 0% |
| Wednesday | 84°F | Mostly Sunny | 1 to 6 mph W | 1% |
| Wednesday Night | 65°F | Partly Cloudy | 5 mph SW | 8% |
| Thursday | 87°F | Mostly Sunny then Chance Rain Showers | 2 to 7 mph SW | 28% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 6 mph SW | 37% |
| Friday | 88°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 7 mph SW | 19% |
| Friday Night | 68°F | Chance Rain Showers then Partly Cloudy | 2 to 6 mph W | 25% |
| Saturday | 86°F | Mostly Sunny then Chance Rain Showers | 2 to 6 mph W | 29% |
| Saturday Night | 68°F | Chance Rain Showers then Mostly Cloudy | 5 mph W | 40% |
| Sunday | 87°F | Sunny | 2 to 6 mph W | 10% |
| Sunday Night | 68°F | Mostly Clear | 5 mph SW | 12% |
| Monday | 87°F | Sunny | 3 to 9 mph W | 8% |
| Monday Night | 66°F | Mostly Clear | 5 to 8 mph W | 10% |
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 Aug 4, 2026.