Dedham, MA Weather & Growing Conditions
Tonight
51°F
Partly Cloudy
Partly cloudy, with a low around 51. Southwest wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 6 mph SW | 4% |
| Wednesday | 76°F | Mostly Sunny | 6 to 10 mph SW | 5% |
| Wednesday Night | 55°F | Partly Cloudy | 6 to 9 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% |
| Tuesday | 58°F | Mostly Sunny | 8 to 12 mph SW | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dedham, MA
Last spring frost
Apr 25
First fall frost
Oct 9
Growing season
167 days
Hardiness zone
6b
Explore more for Dedham, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Norwood Mem Ap, Ma (3.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.