Siasconset, MA Weather & Growing Conditions
Tonight
54°F
Mostly Cloudy
Mostly cloudy, with a low around 54. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Cloudy | 10 mph SW | 5% |
| Wednesday | 62°F | Mostly Sunny | 10 to 14 mph SW | 6% |
| Wednesday Night | 56°F | Patchy Fog then Partly Cloudy | 10 mph SW | 3% |
| Thursday | 64°F | Partly Sunny | 8 to 13 mph SW | 5% |
| Thursday Night | 58°F | Mostly Cloudy then Chance Light Rain | 10 mph SW | 46% |
| Friday | 64°F | Light Rain | 13 mph S | 76% |
| Friday Night | 56°F | Rain | 10 mph S | 87% |
| Saturday | 62°F | Light Rain | 8 to 12 mph SW | 85% |
| Saturday Night | 49°F | Light Rain Likely | 7 to 10 mph W | 58% |
| Sunday | 57°F | Chance Light Rain | 12 mph W | 33% |
| Sunday Night | 47°F | Partly Cloudy | 12 mph W | 12% |
| Monday | 56°F | Chance Light Rain | 12 to 15 mph NW | 37% |
| Monday Night | 45°F | Chance Light Rain | 15 mph NW | 36% |
| Tuesday | 57°F | Slight Chance Light Rain | 18 mph W | 22% |
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 Nov 4, 2026.