Vashon, WA Weather & Growing Conditions
Tonight
41°F
Partly Cloudy then Patchy Fog
Patchy fog after midnight. Partly cloudy, with a low around 41. Northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Partly Cloudy then Patchy Fog | 2 mph NE | 3% |
| Wednesday | 55°F | Patchy Fog then Slight Chance Light Rain | 2 to 6 mph SSW | 22% |
| Wednesday Night | 48°F | Light Rain | 6 to 10 mph SSW | 99% |
| Thursday | 56°F | Partly Sunny | 7 to 10 mph SSW | 13% |
| Thursday Night | 47°F | Light Rain | 7 mph S | 78% |
| Friday | 55°F | Light Rain | 6 to 10 mph S | 78% |
| Friday Night | 48°F | Chance Light Rain | 2 to 7 mph S | 47% |
| Saturday | 59°F | Chance Light Rain | 5 mph SSW | 34% |
| Saturday Night | 50°F | Light Rain Likely | 5 to 17 mph SSW | 73% |
| Sunday | 56°F | Light Rain Likely | 7 to 16 mph SSW | 69% |
| Sunday Night | 45°F | Slight Chance Light Rain | 2 to 7 mph SE | 24% |
| Monday | 55°F | Light Rain Likely | 2 to 6 mph SE | 55% |
| Monday Night | 48°F | Light Rain Likely | 6 to 9 mph S | 72% |
| Tuesday | 56°F | Light Rain Likely | 7 to 13 mph S | 72% |
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 Nov 4, 2026.