Winchester, MA Weather & Growing Conditions
This Afternoon
77°F
Sunny
Sunny. High near 77, with temperatures falling to around 70 in the afternoon. Southwest wind around 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 12 mph SW | 3% |
| Tonight | 58°F | Partly Cloudy | 8 mph SW | 2% |
| Thursday | 75°F | Mostly Cloudy | 7 to 13 mph SW | 8% |
| Thursday Night | 62°F | Mostly Cloudy then Chance Light Rain | 5 to 9 mph SW | 40% |
| Friday | 71°F | Light Rain | 6 mph S | 90% |
| Friday Night | 56°F | Light Rain | 3 mph S | 95% |
| Saturday | 65°F | Light Rain Likely | 6 mph N | 68% |
| Saturday Night | 46°F | Chance Light Rain | 5 to 8 mph NW | 26% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 9 mph W | 23% |
| Sunday Night | 39°F | Partly Cloudy | 6 mph W | 6% |
| Monday | 56°F | Sunny then Slight Chance Light Rain | 7 to 12 mph W | 17% |
| Monday Night | 38°F | Slight Chance Light Rain then Partly Cloudy | 8 mph W | 15% |
| Tuesday | 59°F | Mostly Sunny | 8 to 12 mph SW | 7% |
| Tuesday Night | 38°F | Partly Cloudy | 8 mph W | 6% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winchester, MA
Last spring frost
Apr 25
First fall frost
Oct 17
Growing season
174 days
Hardiness zone
6b
Explore more for Winchester, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Reading, Ma (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.