Lake Forest Park, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Forest Park, a city in King County, Washington.
Overnight
40°F
Partly Cloudy
Partly cloudy, with a low around 40. South southeast wind around 2 mph.
7-day forecast for Lake Forest Park
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Partly Cloudy | 2 mph SSE | 0% |
| Wednesday | 56°F | Partly Sunny then Chance Light Rain | 3 to 8 mph SSE | 41% |
| Wednesday Night | 47°F | Light Rain | 8 to 13 mph S | 86% |
| Thursday | 56°F | Partly Sunny | 8 mph S | 6% |
| Thursday Night | 46°F | Light Rain Likely | 7 to 10 mph SSE | 70% |
| Friday | 54°F | Light Rain Likely | 7 to 13 mph SSE | 70% |
| Friday Night | 48°F | Light Rain Likely | 3 to 7 mph SSE | 72% |
| Saturday | 61°F | Chance Light Rain | 5 mph SSE | 28% |
| Saturday Night | 50°F | Light Rain | 5 to 15 mph S | 81% |
| Sunday | 55°F | Light Rain Likely | 3 to 14 mph S | 60% |
| Sunday Night | 43°F | Slight Chance Light Rain | 3 mph SE | 15% |
| Monday | 55°F | Chance Light Rain | 5 mph SE | 41% |
| Monday Night | 46°F | Light Rain Likely | 5 to 9 mph SSE | 58% |
| Tuesday | 57°F | Light Rain Likely | 7 to 12 mph SSE | 58% |
Forecast source: National Weather Service (api.weather.gov) for Lake Forest Park (47.759, -122.292). Updated through the day.
Growing snapshot for Lake Forest Park
Last spring frost
Mar 8
First fall frost
Nov 23
Growing season
259 days
Hardiness zone
9a
More local growing data for Lake Forest Park: nearby ZIP 98155 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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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, Seattle Sand Pt Wsfo, Wa (5.1 mi from Lake Forest Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.