Watertown Town, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Watertown Town, a city in Middlesex County, Massachusetts.
Today
85°F
Sunny
Sunny, with a high near 85. West wind around 7 mph.
7-day forecast for Watertown Town
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 7 mph W | 0% |
| Tonight | 63°F | Partly Cloudy | 2 to 6 mph SW | 2% |
| Wednesday | 85°F | Mostly Sunny | 2 to 7 mph SW | 2% |
| Wednesday Night | 68°F | Partly Cloudy | 6 mph SW | 5% |
| Thursday | 89°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph SW | 18% |
| Thursday Night | 73°F | Slight Chance Rain Showers then Partly Cloudy | 5 to 8 mph SW | 23% |
| Friday | 91°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 9 mph SW | 21% |
| Friday Night | 72°F | Chance Rain Showers then Partly Cloudy | 3 to 7 mph W | 29% |
| Saturday | 89°F | Mostly Sunny then Chance Rain Showers | 3 to 7 mph W | 32% |
| Saturday Night | 71°F | Chance Rain Showers | 6 mph SW | 43% |
| Sunday | 89°F | Mostly Sunny | 3 to 8 mph W | 12% |
| Sunday Night | 71°F | Mostly Clear | 7 mph SW | 14% |
| Monday | 90°F | Sunny | 5 to 10 mph SW | 10% |
| Monday Night | 70°F | Mostly Clear | 9 mph W | 12% |
Forecast source: National Weather Service (api.weather.gov) for Watertown Town (42.369, -71.178). Updated through the day.
Growing snapshot for Watertown Town
Last spring frost
Apr 19
First fall frost
Oct 23
Growing season
185 days
Hardiness zone
6b
More local growing data for Watertown Town: nearby ZIP 02472 weather · frost dates · planting calendar · Massachusetts frost dates
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Climate data from the nearest NOAA station, Jamaica Plain, Ma (5.3 mi from Watertown Town). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.