Dedham, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dedham, a community in Norfolk County, Massachusetts.
This Afternoon
73°F
Mostly Cloudy
Mostly cloudy. High near 73, with temperatures falling to around 63 in the afternoon. Southwest wind around 6 mph.
7-day forecast for Dedham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 73°F | Mostly Cloudy | 6 mph SW | 2% |
| Tonight | 51°F | Mostly Cloudy | 6 mph SW | 4% |
| Wednesday | 76°F | Mostly Sunny | 6 to 9 mph SW | 5% |
| Wednesday Night | 55°F | Partly Cloudy | 8 mph SW | 3% |
| Thursday | 74°F | Mostly Cloudy | 6 to 12 mph SW | 13% |
| Thursday Night | 62°F | Mostly Cloudy then Light Rain Likely | 8 mph SW | 59% |
| Friday | 69°F | Rain | 7 mph S | 84% |
| Friday Night | 57°F | Rain | 5 mph S | 85% |
| Saturday | 64°F | Light Rain | 8 mph W | 75% |
| Saturday Night | 44°F | Chance Light Rain | 6 mph NW | 47% |
| Sunday | 60°F | Slight Chance Light Rain then Mostly Sunny | 5 to 8 mph W | 24% |
| Sunday Night | 38°F | Partly Cloudy | 6 mph W | 10% |
| Monday | 58°F | Slight Chance Light Rain | 5 to 10 mph W | 20% |
| Monday Night | 37°F | Slight Chance Light Rain | 8 mph W | 21% |
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 Nov 4, 2026.