Dennis Port, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dennis Port, a community in Barnstable County, Massachusetts.
This Afternoon
63°F
Mostly Sunny
Mostly sunny. High near 63, with temperatures falling to around 56 in the afternoon. Southwest wind around 10 mph.
7-day forecast for Dennis Port
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Sunny | 10 mph SW | 2% |
| Tonight | 53°F | Mostly Cloudy | 7 mph SW | 9% |
| Wednesday | 65°F | Sunny | 7 to 12 mph SW | 6% |
| Wednesday Night | 56°F | Patchy Fog | 6 to 9 mph SW | 3% |
| Thursday | 66°F | Partly Sunny | 7 to 12 mph SW | 4% |
| Thursday Night | 59°F | Mostly Cloudy then Light Rain Likely | 10 mph SW | 55% |
| Friday | 64°F | Light Rain | 12 mph S | 83% |
| Friday Night | 55°F | Rain | 9 mph S | 87% |
| Saturday | 62°F | Light Rain | 10 mph SW | 84% |
| Saturday Night | 46°F | Light Rain Likely | 8 mph NW | 55% |
| Sunday | 58°F | Chance Light Rain | 10 mph W | 30% |
| Sunday Night | 42°F | Partly Cloudy | 8 mph W | 12% |
| Monday | 56°F | Chance Light Rain | 8 to 13 mph NW | 28% |
| Monday Night | 41°F | Chance Light Rain | 12 mph NW | 28% |
Forecast source: National Weather Service (api.weather.gov) for Dennis Port (41.668, -70.137). Updated through the day.
Growing snapshot for Dennis Port
Last spring frost
Apr 13
First fall frost
Nov 3
Growing season
204 days
Hardiness zone
7b
More local growing data for Dennis Port: nearby ZIP 02639 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
Barnstable Town
Bourne
Brewster
Buzzards Bay
Chatham
Dennis
East Dennis
East Falmouth
East Harwich
East Sandwich
Falmouth
Forestdale
Harwich Center
Harwich Port
Mashpee Neck
Monomoscoy Island
Monument Beach
New Seabury
North Eastham
North Falmouth
Northwest Harwich
Orleans
Pocasset
Popponesset
Popponesset Island
Provincetown
Sagamore
Sandwich
Seabrook
Seconsett Island
Climate data from the nearest NOAA station, W Harwich, Ma (1.1 mi from Dennis Port). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.