Lunenburg, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lunenburg, a community in Worcester County, Massachusetts.
This Afternoon
73°F
Mostly Cloudy
Mostly cloudy. High near 73, with temperatures falling to around 62 in the afternoon. Southwest wind around 5 mph.
7-day forecast for Lunenburg
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Cloudy | 5 mph SW | 10% |
| Tonight | 50°F | Mostly Cloudy | 3 mph SW | 3% |
| Wednesday | 74°F | Mostly Sunny | 3 to 8 mph SW | 4% |
| Wednesday Night | 55°F | Partly Cloudy | 6 mph SW | 2% |
| Thursday | 73°F | Chance Light Rain | 6 to 10 mph SW | 34% |
| Thursday Night | 60°F | Light Rain Likely | 2 to 7 mph SW | 57% |
| Friday | 69°F | Rain | 3 mph S | 81% |
| Friday Night | 53°F | Rain | 2 mph N | 81% |
| Saturday | 63°F | Light Rain Likely | 6 mph NW | 69% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 46% |
| Sunday | 59°F | Slight Chance Light Rain then Mostly Sunny | 7 mph W | 24% |
| Sunday Night | 36°F | Partly Cloudy | 3 mph W | 10% |
| Monday | 56°F | Slight Chance Light Rain | 5 to 10 mph W | 20% |
| Monday Night | 35°F | Slight Chance Light Rain | 6 mph W | 20% |
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 Nov 3, 2026.