South Lancaster, MA Weather & Growing Conditions
This Afternoon
66°F
Mostly Sunny
Mostly sunny, with a high near 66. East wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Sunny | 2 mph E | 0% |
| Tonight | 45°F | Partly Cloudy | 2 mph S | 0% |
| Sunday | 61°F | Mostly Cloudy then Slight Chance Rain Showers | 0 to 6 mph SE | 85% |
| Sunday Night | 48°F | Rain Showers | 2 to 7 mph NE | 82% |
| Monday | 66°F | Partly Sunny | 8 mph N | 9% |
| Monday Night | 44°F | Mostly Cloudy | 1 to 5 mph N | 1% |
| Tuesday | 61°F | Partly Sunny | 8 mph NE | 2% |
| Tuesday Night | 43°F | Mostly Cloudy | 2 to 7 mph NE | 2% |
| Wednesday | 63°F | Partly Sunny | 8 to 13 mph NE | 2% |
| Wednesday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 3 to 9 mph NE | 19% |
| Thursday | 61°F | Chance Rain Showers | 9 to 13 mph NE | 32% |
| Thursday Night | 44°F | Chance Rain Showers | 9 to 13 mph NE | 36% |
| Friday | 62°F | Chance Rain Showers | 13 mph N | 35% |
| Friday Night | 45°F | Chance Rain Showers | 13 mph N | 35% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for South Lancaster, MA
Last spring frost
Apr 29
First fall frost
Oct 11
Growing season
164 days
Hardiness zone
6b
Explore more for South Lancaster, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Fitchburg Muni Ap, Ma (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.