Vashon, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vashon, a community in King County, Washington.
Today
83°F
Sunny then Areas Of Smoke
Areas of smoke after 3pm. Sunny, with a high near 83. North wind 7 to 10 mph.
7-day forecast for Vashon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 83°F | Sunny then Areas Of Smoke | 7 to 10 mph N | 0% |
| Tonight | 60°F | Areas Of Smoke | 5 to 9 mph NNE | 0% |
| Wednesday | 88°F | Sunny then Patchy Smoke | 5 to 9 mph N | 0% |
| Wednesday Night | 61°F | Clear | 2 to 8 mph N | 0% |
| Thursday | 89°F | Sunny | 2 to 7 mph NNW | 0% |
| Thursday Night | 61°F | Mostly Clear | 7 mph WSW | 0% |
| Friday | 86°F | Sunny | 6 mph SW | 0% |
| Friday Night | 59°F | Mostly Clear | 2 to 7 mph WNW | 0% |
| Saturday | 78°F | Sunny | 2 to 6 mph WSW | 0% |
| Saturday Night | 57°F | Mostly Clear | 3 to 7 mph W | 1% |
| Sunday | 74°F | Mostly Sunny | 6 mph WSW | 1% |
| Sunday Night | 56°F | Mostly Clear | 5 mph NW | 1% |
| Monday | 73°F | Mostly Sunny | 6 mph WNW | 1% |
| Monday Night | 56°F | Partly Cloudy | 6 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Vashon (47.411, -122.455). Updated through the day.
Growing snapshot for Vashon
Last spring frost
Mar 2
First fall frost
Nov 23
Growing season
266 days
Hardiness zone
9a
More local growing data for Vashon: nearby ZIP 98070 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Seattle Tacoma Intl Ap, Wa (7.9 mi from Vashon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.