Winchendon, MA Weather & Growing Conditions
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 5 mph SW | 3% |
| Wednesday | 69°F | Mostly Sunny | 5 to 10 mph SW | 4% |
| Wednesday Night | 52°F | Partly Cloudy then Patchy Fog | 9 mph SW | 2% |
| Thursday | 66°F | Chance Light Rain | 8 to 12 mph SW | 46% |
| Thursday Night | 59°F | Light Rain Likely | 2 to 9 mph SW | 63% |
| Friday | 65°F | Light Rain | 1 to 5 mph SE | 75% |
| Friday Night | 52°F | Light Rain | 3 mph NE | 77% |
| Saturday | 59°F | Light Rain Likely | 6 mph NW | 66% |
| Saturday Night | 40°F | Chance Light Rain | 6 mph NW | 44% |
| Sunday | 54°F | Chance Light Rain then Mostly Sunny | 5 to 9 mph W | 25% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph W | 10% |
| Monday | 52°F | Slight Chance Light Rain | 5 to 13 mph W | 21% |
| Monday Night | 32°F | Slight Chance Light Rain | 7 to 10 mph W | 20% |
| Tuesday | 53°F | Mostly Sunny | 8 to 14 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Winchendon, MA
Last spring frost
May 6
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5b
Explore more for Winchendon, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Birch Hill Dam, Ma (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.