Harwich Center, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Harwich Center, a community in Barnstable County, Massachusetts.
Today
66°F
Sunny
Sunny. High near 66, with temperatures falling to around 59 in the afternoon. Southwest wind 7 to 12 mph.
7-day forecast for Harwich Center
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Sunny | 7 to 12 mph SW | 4% |
| Tonight | 56°F | Partly Cloudy then Patchy Fog | 6 to 9 mph SW | 3% |
| Thursday | 67°F | Patchy Fog then Partly Sunny | 7 to 12 mph SW | 2% |
| Thursday Night | 58°F | Light Rain Likely | 9 mph SW | 58% |
| Friday | 66°F | Light Rain | 10 mph S | 93% |
| Friday Night | 54°F | Light Rain | 8 mph S | 96% |
| Saturday | 63°F | Light Rain | 7 to 10 mph S | 89% |
| Saturday Night | 44°F | Slight Chance T-storms | 9 mph W | 23% |
| Sunday | 58°F | Slight Chance Light Rain then Mostly Sunny | 8 to 12 mph W | 18% |
| Sunday Night | 41°F | Partly Cloudy | 8 mph W | 10% |
| Monday | 56°F | Chance Light Rain | 9 to 13 mph W | 31% |
| Monday Night | 38°F | Chance Light Rain then Partly Cloudy | 8 to 12 mph W | 25% |
| Tuesday | 57°F | Sunny | 10 to 14 mph W | 7% |
| Tuesday Night | 38°F | Mostly Clear | 12 mph W | 5% |
Forecast source: National Weather Service (api.weather.gov) for Harwich Center (41.692, -70.066). Updated through the day.
Growing snapshot for Harwich Center
Last spring frost
Apr 13
First fall frost
Nov 4
Growing season
206 days
Hardiness zone
7b
More local growing data for Harwich Center: nearby ZIP 02645 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
Barnstable Town
Bourne
Brewster
Buzzards Bay
Chatham
Dennis
Dennis Port
East Dennis
East Falmouth
East Harwich
East Sandwich
Falmouth
Forestdale
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, Chatham Muni Ap, Ma (3.7 mi from Harwich Center). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.