Vashon, WA Weather & Growing Conditions
Today
72°F
Partly Sunny
Partly sunny, with a high near 72. South wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Partly Sunny | 3 mph S | 0% |
| Tonight | 53°F | Mostly Clear | 5 mph NNE | 0% |
| Sunday | 72°F | Mostly Sunny | 2 to 7 mph N | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 7 mph N | 0% |
| Monday | 70°F | Mostly Sunny | 3 mph WNW | 0% |
| Monday Night | 53°F | Partly Cloudy | 1 to 5 mph NNE | 1% |
| Tuesday | 68°F | Partly Sunny | 3 mph NNW | 1% |
| Tuesday Night | 52°F | Mostly Cloudy | 3 mph W | 5% |
| Wednesday | 67°F | Partly Sunny | 2 to 6 mph SW | 10% |
| Wednesday Night | 52°F | Mostly Cloudy | 2 to 6 mph N | 11% |
| Thursday | 63°F | Mostly Cloudy then Slight Chance Light Rain | 2 to 8 mph NNE | 19% |
| Thursday Night | 51°F | Slight Chance Light Rain | 2 to 8 mph NNE | 20% |
| Friday | 63°F | Partly Sunny | 2 to 8 mph NNW | 14% |
| Friday Night | 49°F | Partly Cloudy | 3 to 8 mph NNE | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vashon, WA
Last spring frost
Mar 2
First fall frost
Nov 23
Growing season
266 days
Hardiness zone
9a
Explore more for Vashon, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Seattle Tacoma Intl Ap, Wa (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.