Shadow Lake, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shadow Lake, a community in King County, Washington.
Today
72°F
Mostly Sunny
Mostly sunny, with a high near 72. Northwest wind around 1 mph.
7-day forecast for Shadow Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 1 mph NW | 0% |
| Tonight | 50°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 73°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 2 mph N | 0% |
| Monday | 71°F | Partly Sunny | 2 mph NW | 0% |
| Monday Night | 51°F | Partly Cloudy | 2 mph NE | 1% |
| Tuesday | 67°F | Mostly Cloudy | 1 mph NNW | 1% |
| Tuesday Night | 48°F | Mostly Cloudy | 2 mph SE | 5% |
| Wednesday | 66°F | Partly Sunny | 2 mph SW | 9% |
| Wednesday Night | 48°F | Mostly Cloudy | 1 mph N | 11% |
| Thursday | 63°F | Mostly Cloudy then Slight Chance Light Rain | 3 mph NNE | 18% |
| Thursday Night | 47°F | Slight Chance Light Rain | 3 mph NNE | 20% |
| Friday | 62°F | Slight Chance Light Rain | 3 mph N | 24% |
| Friday Night | 46°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph ENE | 18% |
Forecast source: National Weather Service (api.weather.gov) for Shadow Lake (47.406, -122.080). Updated through the day.
Growing snapshot for Shadow Lake
Last spring frost
Mar 20
First fall frost
Nov 10
Growing season
233 days
Hardiness zone
8b
More local growing data for Shadow Lake: nearby ZIP 98042 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Algona
Ames Lake
Auburn
Baring
Beaux Arts Village
Bellevue
Black Diamond
Bothell
Boulevard Park
Bryn Mawr-Skyway
Burien
Carnation
Clyde Hill
Cottage Lake
Covington
Des Moines
Duvall
East Renton Highlands
Fairwood
Fall City
Federal Way
Greenwater
High Bridge
Hobart
Hunts Point
Index
Issaquah
Kenmore
Kent
Kirkland
Climate data from the nearest NOAA station, Kent, Wa (7 mi from Shadow Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.