South Lancaster, MA Weather & Growing Conditions
Today
83°F
Sunny
Sunny, with a high near 83. West wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny | 5 mph W | 0% |
| Tonight | 60°F | Partly Cloudy | 5 mph SW | 1% |
| Wednesday | 83°F | Mostly Sunny | 1 to 6 mph SW | 1% |
| Wednesday Night | 65°F | Partly Cloudy | 5 mph SW | 8% |
| Thursday | 87°F | Mostly Sunny then Chance Rain Showers | 3 to 7 mph SW | 29% |
| Thursday Night | 70°F | Chance Showers And Thunderstorms | 6 mph SW | 38% |
| Friday | 89°F | Mostly Sunny then Slight Chance Rain Showers | 3 to 8 mph SW | 19% |
| Friday Night | 69°F | Chance Rain Showers | 2 to 6 mph W | 25% |
| Saturday | 87°F | Mostly Sunny then Chance Rain Showers | 2 to 6 mph W | 29% |
| Saturday Night | 68°F | Chance Rain Showers then Mostly Cloudy | 5 mph W | 40% |
| Sunday | 88°F | Mostly Sunny | 2 to 7 mph W | 11% |
| Sunday Night | 68°F | Mostly Clear | 6 mph SW | 13% |
| Monday | 88°F | Sunny | 3 to 9 mph W | 9% |
| Monday Night | 67°F | Mostly Clear | 5 to 8 mph W | 11% |
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 Aug 4, 2026.