Winchendon, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Winchendon, a community in Worcester County, Massachusetts.
Tonight
46°F
Partly Cloudy
Partly cloudy, with a low around 46. Southwest wind around 5 mph.
7-day forecast for Winchendon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Partly Cloudy | 5 mph SW | 3% |
| Wednesday | 70°F | Mostly Sunny | 5 to 10 mph SW | 4% |
| Wednesday Night | 52°F | Partly Cloudy then Patchy Fog | 7 mph SW | 2% |
| Thursday | 67°F | Chance Light Rain | 7 to 12 mph SW | 48% |
| Thursday Night | 58°F | Light Rain Likely | 1 to 8 mph SW | 62% |
| Friday | 65°F | Light Rain | 0 to 5 mph E | 75% |
| Friday Night | 52°F | Light Rain | 3 mph N | 77% |
| Saturday | 60°F | Light Rain Likely | 6 mph NW | 66% |
| Saturday Night | 39°F | Chance Light Rain | 6 mph W | 45% |
| Sunday | 55°F | Chance Light Rain then Mostly Sunny | 6 to 9 mph W | 25% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph W | 10% |
| Monday | 53°F | Slight Chance Light Rain | 5 to 13 mph W | 21% |
| Monday Night | 31°F | Slight Chance Light Rain | 6 to 9 mph W | 20% |
| Tuesday | 54°F | Mostly Sunny | 8 to 14 mph W | 13% |
Forecast source: National Weather Service (api.weather.gov) for Winchendon (42.680, -72.042). Updated through the day.
Growing snapshot for Winchendon
Last spring frost
May 6
First fall frost
Oct 1
Growing season
148 days
Hardiness zone
5b
More local growing data for Winchendon: nearby ZIP 01475 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Birch Hill Dam, Ma (4.2 mi from Winchendon). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.