Dedham, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dedham, a community in Norfolk County, Massachusetts.
Overnight
45°F
Mostly Cloudy
Mostly cloudy, with a low around 45. North wind around 5 mph.
7-day forecast for Dedham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 45°F | Mostly Cloudy | 5 mph N | 0% |
| Saturday | 65°F | Mostly Sunny | 6 mph NE | 0% |
| Saturday Night | 47°F | Partly Cloudy | 1 to 5 mph SE | 0% |
| Sunday | 63°F | Mostly Cloudy then Rain Showers | 1 to 6 mph SE | 82% |
| Sunday Night | 51°F | Rain Showers | 3 to 8 mph NE | 80% |
| Monday | 65°F | Slight Chance Rain Showers then Partly Sunny | 9 mph NE | 18% |
| Monday Night | 48°F | Mostly Cloudy | 2 to 7 mph NE | 3% |
| Tuesday | 61°F | Mostly Cloudy | 7 to 10 mph NE | 3% |
| Tuesday Night | 48°F | Mostly Cloudy | 5 to 8 mph NE | 2% |
| Wednesday | 62°F | Partly Sunny | 9 to 14 mph NE | 3% |
| Wednesday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 7 to 10 mph NE | 20% |
| Thursday | 61°F | Chance Rain Showers | 10 to 14 mph NE | 33% |
| Thursday Night | 49°F | Chance Rain Showers | 10 to 14 mph NE | 36% |
| Friday | 62°F | Chance Rain Showers | 15 mph NE | 36% |
Forecast source: National Weather Service (api.weather.gov) for Dedham (42.247, -71.179). Updated through the day.
Growing snapshot for Dedham
Last spring frost
Apr 25
First fall frost
Oct 9
Growing season
167 days
Hardiness zone
6b
More local growing data for Dedham: nearby ZIP 02026 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
Bellingham
Braintree Town
Brookline
Dover
Foxborough
Franklin Town
Holbrook
Medfield
Millis-Clicquot
Milton
Needham
Norwood
Quincy
Randolph Town
Sharon
Walpole
Wellesley
Weymouth Town
Climate data from the nearest NOAA station, Norwood Mem Ap, Ma (3.9 mi from Dedham). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.