Lunenburg, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lunenburg, a community in Worcester County, Massachusetts.
Today
83°F
Sunny
Sunny, with a high near 83. West wind around 5 mph.
7-day forecast for Lunenburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 5 mph W | 0% |
| Tonight | 59°F | Mostly Clear | 3 mph W | 0% |
| Wednesday | 83°F | Partly Sunny | 1 to 6 mph W | 1% |
| Wednesday Night | 64°F | Partly Cloudy | 5 mph SW | 9% |
| Thursday | 86°F | Mostly Sunny then Chance Rain Showers | 2 to 7 mph SW | 29% |
| Thursday Night | 69°F | Chance Showers And Thunderstorms | 2 to 6 mph SW | 38% |
| Friday | 87°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 7 mph SW | 21% |
| Friday Night | 68°F | Chance Rain Showers then Partly Cloudy | 5 mph W | 27% |
| Saturday | 85°F | Mostly Sunny then Chance Rain Showers | 2 to 6 mph W | 29% |
| Saturday Night | 67°F | Chance Rain Showers then Mostly Cloudy | 3 mph W | 39% |
| Sunday | 87°F | Sunny | 2 to 7 mph W | 10% |
| Sunday Night | 67°F | Mostly Clear | 6 mph SW | 12% |
| Monday | 87°F | Sunny | 3 to 9 mph W | 8% |
| Monday Night | 66°F | Partly Cloudy | 5 to 8 mph W | 10% |
Forecast source: National Weather Service (api.weather.gov) for Lunenburg (42.593, -71.727). Updated through the day.
Growing snapshot for Lunenburg
Last spring frost
Apr 29
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
6a
More local growing data for Lunenburg: nearby ZIP 01462 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Fitchburg Muni Ap, Ma (2.8 mi from Lunenburg). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.