Westborough, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Westborough, a community in Worcester County, Massachusetts.
Tonight
47°F
Partly Cloudy
Partly cloudy, with a low around 47. North wind around 7 mph.
7-day forecast for Westborough
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Partly Cloudy | 7 mph N | 0% |
| Saturday | 64°F | Sunny | 5 mph NE | 0% |
| Saturday Night | 44°F | Partly Cloudy | 3 mph SE | 1% |
| Sunday | 64°F | Rain Showers | 1 to 6 mph SE | 83% |
| Sunday Night | 53°F | Rain Showers | 3 to 8 mph E | 83% |
| Monday | 65°F | Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 28% |
| Monday Night | 48°F | Partly Cloudy | 3 to 8 mph NE | 6% |
| Tuesday | 60°F | Mostly Cloudy | 10 mph NE | 7% |
| Tuesday Night | 47°F | Mostly Cloudy | 5 to 9 mph NE | 3% |
| Wednesday | 61°F | Partly Sunny | 9 to 13 mph NE | 7% |
| Wednesday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 10 mph NE | 20% |
| Thursday | 60°F | Chance Rain Showers | 12 mph NE | 28% |
| Thursday Night | 48°F | Chance Rain Showers | 7 to 10 mph NE | 37% |
| Friday | 63°F | Chance Rain Showers | 10 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov) for Westborough (42.267, -71.617). Updated through the day.
Growing snapshot for Westborough
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
6b
More local growing data for Westborough: nearby ZIP 01581 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
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Barre
Brookfield
Clinton
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East Brookfield
East Douglas
Fiskdale
Fitchburg
Gardner
Hopedale
Leominster
Lunenburg
Milford
North Brookfield
Northborough
Oxford
Petersham
Rutland
South Ashburnham
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Southbridge Town
Spencer
Sturbridge
Upton
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West Brookfield
Climate data from the nearest NOAA station, West Medway, Ma (13.1 mi from Westborough). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.