Dennis Port, MA Weather & Growing Conditions
Today
64°F
Mostly Sunny
Mostly sunny, with a high near 64. Northeast wind 7 to 12 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 64°F | Mostly Sunny | 7 to 12 mph NE | 0% |
| Tonight | 55°F | Partly Cloudy | 6 mph E | 0% |
| Sunday | 67°F | Mostly Cloudy then Rain Showers Likely | 6 to 10 mph SE | 69% |
| Sunday Night | 57°F | Rain Showers | 6 to 13 mph SE | 84% |
| Monday | 66°F | Chance Rain Showers then Mostly Cloudy | 13 to 16 mph N | 43% |
| Monday Night | 55°F | Mostly Cloudy | 10 to 14 mph NE | 3% |
| Tuesday | 64°F | Mostly Cloudy | 16 mph NE | 7% |
| Tuesday Night | 55°F | Mostly Cloudy | 17 mph NE | 4% |
| Wednesday | 65°F | Partly Sunny | 20 mph NE | 5% |
| Wednesday Night | 54°F | Slight Chance Rain Showers | 18 to 22 mph NE | 24% |
| Thursday | 65°F | Chance Rain Showers | 23 mph NE | 36% |
| Thursday Night | 54°F | Chance Rain Showers | 23 mph NE | 44% |
| Friday | 65°F | Chance Rain Showers | 24 mph NE | 43% |
| Friday Night | 54°F | Chance Showers And Thunderstorms | 24 mph NE | 46% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Dennis Port, MA
Last spring frost
Apr 13
First fall frost
Nov 3
Growing season
204 days
Hardiness zone
7b
Explore more for Dennis Port, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, W Harwich, Ma (1.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.