Chatham, MA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Chatham, a community in Barnstable County, Massachusetts.
Overnight
53°F
Mostly Cloudy
Mostly cloudy, with a low around 53. Southwest wind around 10 mph.
7-day forecast for Chatham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Mostly Cloudy | 10 mph SW | 5% |
| Wednesday | 63°F | Mostly Sunny | 10 to 14 mph SW | 6% |
| Wednesday Night | 56°F | Partly Cloudy then Patchy Fog | 8 to 13 mph SW | 4% |
| Thursday | 64°F | Partly Sunny | 8 to 14 mph SW | 3% |
| Thursday Night | 58°F | Mostly Cloudy then Chance Light Rain | 12 mph SW | 51% |
| Friday | 63°F | Light Rain | 13 mph S | 83% |
| Friday Night | 56°F | Rain | 10 mph S | 87% |
| Saturday | 61°F | Light Rain | 13 mph SW | 85% |
| Saturday Night | 49°F | Light Rain Likely | 10 mph W | 57% |
| Sunday | 56°F | Chance Light Rain | 12 mph W | 31% |
| Sunday Night | 46°F | Partly Cloudy | 10 mph W | 13% |
| Monday | 55°F | Chance Light Rain | 10 to 15 mph W | 29% |
| Monday Night | 44°F | Chance Light Rain | 15 mph NW | 29% |
| Tuesday | 56°F | Slight Chance Light Rain then Mostly Sunny | 18 mph W | 18% |
Forecast source: National Weather Service (api.weather.gov) for Chatham (41.674, -69.963). Updated through the day.
Growing snapshot for Chatham
Last spring frost
Apr 13
First fall frost
Nov 4
Growing season
206 days
Hardiness zone
7b
More local growing data for Chatham: nearby ZIP 02633 weather · frost dates · planting calendar · Massachusetts frost dates
Nearby towns & communities
Barnstable Town
Bourne
Brewster
Buzzards Bay
Dennis
Dennis Port
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, Chatham Muni Ap, Ma (0.7 mi from Chatham). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.