Westborough, MA Weather & Growing Conditions
Overnight
47°F
Mostly Cloudy
Mostly cloudy, with a low around 47. North wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 47°F | Mostly Cloudy | 5 mph N | 0% |
| Saturday | 65°F | Mostly Sunny | 1 to 5 mph NE | 0% |
| Saturday Night | 43°F | Partly Cloudy | 3 mph SE | 0% |
| Sunday | 64°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 6 mph SE | 83% |
| Sunday Night | 53°F | Rain Showers | 2 to 7 mph NE | 82% |
| Monday | 65°F | Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 28% |
| Monday Night | 48°F | Partly Cloudy | 2 to 7 mph NE | 6% |
| Tuesday | 61°F | Mostly Cloudy | 9 mph NE | 7% |
| Tuesday Night | 46°F | Mostly Cloudy | 5 to 8 mph NE | 3% |
| Wednesday | 61°F | Partly Sunny | 8 to 12 mph NE | 7% |
| Wednesday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 6 to 9 mph NE | 20% |
| Thursday | 60°F | Chance Rain Showers | 10 mph NE | 28% |
| Thursday Night | 48°F | Chance Rain Showers | 6 to 9 mph NE | 37% |
| Friday | 64°F | Chance Rain Showers | 9 mph N | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Westborough, MA
Last spring frost
Apr 30
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
6b
Explore more for Westborough, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, West Medway, Ma (13.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.