Dedham, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dedham, a community in Norfolk County, Massachusetts.
Today
85°F
Sunny
Sunny, with a high near 85. West wind around 6 mph.
7-day forecast for Dedham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 6 mph W | 0% |
| Tonight | 62°F | Partly Cloudy | 2 to 6 mph SW | 3% |
| Wednesday | 85°F | Mostly Sunny | 2 to 7 mph W | 3% |
| Wednesday Night | 67°F | Partly Cloudy | 6 mph SW | 5% |
| Thursday | 88°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph SW | 23% |
| Thursday Night | 72°F | Chance Rain Showers then Partly Cloudy | 7 mph SW | 29% |
| Friday | 91°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 8 mph SW | 22% |
| Friday Night | 71°F | Chance Rain Showers then Partly Cloudy | 3 to 7 mph W | 31% |
| Saturday | 88°F | Mostly Sunny then Chance Rain Showers | 3 to 7 mph W | 32% |
| Saturday Night | 71°F | Chance Rain Showers | 6 mph SW | 44% |
| Sunday | 89°F | Mostly Sunny | 3 to 8 mph W | 14% |
| Sunday Night | 71°F | Slight Chance Rain Showers then Mostly Clear | 7 mph SW | 17% |
| Monday | 89°F | Sunny | 5 to 9 mph SW | 10% |
| Monday Night | 70°F | Mostly Clear | 9 mph W | 13% |
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 Aug 4, 2026.