Siasconset, MA Weather & Growing Conditions
This Afternoon
63°F
Mostly Sunny
Mostly sunny, with a high near 63. Northeast wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 63°F | Mostly Sunny | 9 mph NE | 0% |
| Tonight | 52°F | Partly Cloudy | 9 mph E | 0% |
| Sunday | 67°F | Mostly Cloudy then Rain Showers Likely | 8 to 13 mph SE | 65% |
| Sunday Night | 61°F | Patchy Fog | 8 to 13 mph E | 100% |
| Monday | 66°F | Rain Showers Likely then Mostly Cloudy | 12 to 17 mph NE | 66% |
| Monday Night | 56°F | Mostly Cloudy | 12 to 15 mph NE | 3% |
| Tuesday | 64°F | Slight Chance Rain Showers | 17 mph NE | 18% |
| Tuesday Night | 55°F | Slight Chance Rain Showers then Mostly Cloudy | 14 to 17 mph NE | 17% |
| Wednesday | 64°F | Partly Sunny | 20 mph NE | 9% |
| Wednesday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 18 to 22 mph NE | 19% |
| Thursday | 64°F | Chance Rain Showers | 20 to 23 mph NE | 35% |
| Thursday Night | 56°F | Chance Rain Showers | 21 to 24 mph NE | 44% |
| Friday | 65°F | Chance Rain Showers | 20 to 24 mph NE | 46% |
| Friday Night | 56°F | Chance Rain Showers | 20 to 23 mph NE | 44% |
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 (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.