Siasconset, MA Weather & Growing Conditions
Today
77°F
Partly Sunny
Partly sunny, with a high near 77. Southwest wind 5 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Partly Sunny | 5 to 8 mph SW | 0% |
| Tonight | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 7 mph SE | 22% |
| Wednesday | 78°F | Slight Chance Rain Showers then Partly Sunny | 3 to 9 mph SW | 24% |
| Wednesday Night | 69°F | Patchy Fog then Mostly Cloudy | 8 mph SW | 5% |
| Thursday | 79°F | Mostly Sunny | 7 to 13 mph SW | 5% |
| Thursday Night | 69°F | Partly Cloudy | 12 mph SW | 1% |
| Friday | 80°F | Mostly Sunny | 13 mph SW | 1% |
| Friday Night | 69°F | Partly Cloudy | 9 to 13 mph SW | 12% |
| Saturday | 80°F | Mostly Sunny | 12 mph SW | 8% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Rain Showers | 8 to 12 mph SW | 16% |
| Sunday | 80°F | Slight Chance Rain Showers | 7 to 13 mph SW | 17% |
| Sunday Night | 69°F | Partly Cloudy | 9 to 13 mph SW | 14% |
| Monday | 79°F | Mostly Sunny | 9 to 14 mph SW | 13% |
| Monday Night | 68°F | Partly Cloudy | 14 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Siasconset, MA
Last spring frost
Apr 13
First fall frost
Nov 8
Growing season
208 days
Hardiness zone
7b
Explore more for Siasconset, MA: full frost dates · planting calendar · Massachusetts frost dates
Climate data from the nearest NOAA station, Nantucket Mem Ap, Ma (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.