Winchester, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchester, a community in Middlesex County, Massachusetts.
This Afternoon
73°F
Mostly Cloudy
Mostly cloudy. High near 73, with temperatures falling to around 65 in the afternoon. Southwest wind around 5 mph.
7-day forecast for Winchester
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Cloudy | 5 mph SW | 3% |
| Tonight | 52°F | Mostly Cloudy | 5 mph SW | 4% |
| Wednesday | 77°F | Mostly Sunny | 5 to 10 mph SW | 5% |
| Wednesday Night | 56°F | Partly Cloudy | 8 mph SW | 3% |
| Thursday | 75°F | Mostly Cloudy | 6 to 12 mph SW | 14% |
| Thursday Night | 62°F | Mostly Cloudy then Chance Light Rain | 5 to 8 mph SW | 51% |
| Friday | 70°F | Rain | 6 mph S | 84% |
| Friday Night | 56°F | Rain | 6 mph S | 84% |
| Saturday | 65°F | Light Rain | 7 mph NW | 75% |
| Saturday Night | 45°F | Chance Light Rain | 6 mph NW | 49% |
| Sunday | 60°F | Chance Light Rain | 8 mph W | 25% |
| Sunday Night | 39°F | Partly Cloudy | 6 mph W | 11% |
| Monday | 58°F | Slight Chance Light Rain | 7 to 12 mph W | 20% |
| Monday Night | 38°F | Slight Chance Light Rain | 8 mph W | 20% |
Forecast source: National Weather Service (api.weather.gov) for Winchester (42.453, -71.144). Updated through the day.
Growing snapshot for Winchester
Last spring frost
Apr 25
First fall frost
Oct 17
Growing season
174 days
Hardiness zone
6b
More local growing data for Winchester: nearby ZIP 01890 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Reading, Ma (5 mi from Winchester). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.