South Ashburnham, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for South Ashburnham, a community in Worcester County, Massachusetts.
Today
68°F
Partly Sunny
Partly sunny. High near 68, with temperatures falling to around 62 in the afternoon. Southwest wind around 5 mph.
7-day forecast for South Ashburnham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Partly Sunny | 5 mph SW | 7% |
| Tonight | 49°F | Mostly Clear | 5 mph SW | 8% |
| Wednesday | 69°F | Sunny | 5 to 9 mph SW | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 7 mph SW | 0% |
| Thursday | 67°F | Chance Light Rain | 8 to 12 mph SW | 33% |
| Thursday Night | 58°F | Chance Light Rain | 3 to 7 mph SW | 44% |
| Friday | 65°F | Rain Likely | 5 mph SW | 74% |
| Friday Night | 51°F | Rain | 3 mph N | 79% |
| Saturday | 60°F | Light Rain Likely | 6 mph N | 66% |
| Saturday Night | 42°F | Chance Light Rain | 5 mph NW | 41% |
| Sunday | 56°F | Slight Chance Light Rain then Mostly Sunny | 3 to 7 mph NW | 20% |
| Sunday Night | 38°F | Partly Cloudy | 3 mph W | 12% |
| Monday | 53°F | Chance Light Rain | 3 to 8 mph W | 37% |
| Monday Night | 35°F | Chance Light Rain | 7 mph W | 36% |
Forecast source: National Weather Service (api.weather.gov) for South Ashburnham (42.621, -71.943). Updated through the day.
Growing snapshot for South Ashburnham
Last spring frost
May 2
First fall frost
Oct 13
Growing season
163 days
Hardiness zone
5b
More local growing data for South Ashburnham: nearby ZIP 01440 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Ashburnham, Ma (4.1 mi from South Ashburnham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.