Brockton, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brockton, a city in Plymouth County, Massachusetts.
Overnight
48°F
Mostly Cloudy
Mostly cloudy, with a low around 48. North wind around 6 mph.
7-day forecast for Brockton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Cloudy | 6 mph N | 0% |
| Saturday | 64°F | Mostly Sunny | 7 mph NE | 0% |
| Saturday Night | 45°F | Partly Cloudy | 0 to 5 mph SE | 0% |
| Sunday | 65°F | Mostly Cloudy then Rain Showers | 1 to 7 mph SE | 80% |
| Sunday Night | 54°F | Rain Showers | 3 to 8 mph E | 85% |
| Monday | 64°F | Chance Rain Showers | 8 to 13 mph NE | 42% |
| Monday Night | 51°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 10 mph NE | 15% |
| Tuesday | 61°F | Partly Sunny | 10 to 14 mph NE | 8% |
| Tuesday Night | 50°F | Mostly Cloudy | 7 to 13 mph NE | 4% |
| Wednesday | 61°F | Partly Sunny | 13 to 17 mph NE | 8% |
| Wednesday Night | 49°F | Mostly Cloudy then Slight Chance Rain Showers | 9 to 14 mph NE | 17% |
| Thursday | 61°F | Chance Rain Showers | 14 to 17 mph NE | 30% |
| Thursday Night | 50°F | Chance Rain Showers | 9 to 15 mph NE | 40% |
| Friday | 64°F | Chance Rain Showers | 15 mph N | 39% |
Forecast source: National Weather Service (api.weather.gov) for Brockton (42.083, -71.025). Updated through the day.
Growing snapshot for Brockton
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
178 days
Hardiness zone
6b
More local growing data for Brockton: nearby ZIP 02301 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
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Hull
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Marion Center
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Climate data from the nearest NOAA station, Brockton, Ma (2.8 mi from Brockton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.