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Shoreline, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Shoreline, a city in King County, Washington.

Tonight
52°F
Partly Cloudy
Partly cloudy, with a low around 52. East northeast wind around 1 mph.

7-day forecast for Shoreline

WhenTempForecastWindPrecip
Tonight 52°F Partly Cloudy 1 mph ENE 0%
Saturday 71°F Partly Sunny 3 mph SW 1%
Saturday Night 51°F Partly Cloudy 3 mph N 0%
Sunday 69°F Mostly Sunny 2 to 6 mph N 0%
Sunday Night 51°F Mostly Clear 1 to 6 mph N 0%
Monday 70°F Mostly Sunny 1 to 5 mph N 0%
Monday Night 52°F Partly Cloudy 1 to 5 mph N 1%
Tuesday 67°F Partly Sunny 3 mph N 2%
Tuesday Night 51°F Partly Cloudy 3 mph NE 3%
Wednesday 66°F Partly Sunny 1 to 5 mph WNW 5%
Wednesday Night 52°F Mostly Cloudy 5 mph N 8%
Thursday 67°F Partly Sunny 2 to 6 mph N 14%
Thursday Night 53°F Chance Light Rain 6 mph ESE 29%
Friday 65°F Chance Light Rain 6 mph SSW 29%

Forecast source: National Weather Service (api.weather.gov) for Shoreline (47.757, -122.346). Updated through the day.

Growing snapshot for Shoreline

Last spring frost
Mar 8
First fall frost
Nov 23
Growing season
259 days
Hardiness zone
9a

More local growing data for Shoreline: nearby ZIP 98133 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Seattle Sand Pt Wsfo, Wa (5.5 mi from Shoreline). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.