Lunenburg, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lunenburg, a community in Worcester County, Massachusetts.
This Afternoon
81°F
Sunny
Sunny, with a high near 81. Northwest wind around 8 mph, with gusts as high as 22 mph.
7-day forecast for Lunenburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 81°F | Sunny | 8 mph NW | 0% |
| Tonight | 46°F | Partly Cloudy | 2 to 7 mph N | 0% |
| Saturday | 66°F | Sunny | 2 mph NE | 0% |
| Saturday Night | 43°F | Partly Cloudy | 2 mph S | 2% |
| Sunday | 61°F | Rain Showers | 1 to 5 mph SE | 85% |
| Sunday Night | 50°F | Rain Showers | 1 to 5 mph NE | 84% |
| Monday | 64°F | Slight Chance Rain Showers then Mostly Sunny | 7 mph N | 18% |
| Monday Night | 46°F | Partly Cloudy | 2 to 6 mph N | 5% |
| Tuesday | 59°F | Partly Sunny | 8 mph NE | 5% |
| Tuesday Night | 44°F | Mostly Cloudy | 2 to 7 mph NE | 2% |
| Wednesday | 59°F | Partly Sunny | 7 to 12 mph NE | 5% |
| Wednesday Night | 45°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 8 mph NE | 20% |
| Thursday | 58°F | Chance Rain Showers | 9 mph NE | 27% |
| Thursday Night | 47°F | Chance Rain Showers | 3 to 8 mph NE | 32% |
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 Sep 18, 2026.