Lake Marcel-Stillwater, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Marcel-Stillwater, a community in King County, Washington.
Today
57°F
Mostly Cloudy
Mostly cloudy. High near 57, with temperatures falling to around 52 in the afternoon. Wind around 0 mph.
7-day forecast for Lake Marcel-Stillwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 57°F | Mostly Cloudy | 0 mph | 3% |
| Tonight | 39°F | Patchy Fog | 1 mph E | 3% |
| Wednesday | 58°F | Patchy Fog then Mostly Sunny | 1 mph ESE | 11% |
| Wednesday Night | 46°F | Light Rain | 0 to 5 mph SSE | 98% |
| Thursday | 54°F | Light Rain Likely | 0 to 3 mph SSW | 59% |
| Thursday Night | 45°F | Light Rain | 0 to 5 mph E | 82% |
| Friday | 54°F | Light Rain | 1 to 5 mph SE | 82% |
| Friday Night | 46°F | Light Rain Likely | 2 mph SE | 60% |
| Saturday | 60°F | Chance Light Rain | 2 mph ESE | 26% |
| Saturday Night | 48°F | Light Rain | 0 to 8 mph SSE | 82% |
| Sunday | 54°F | Light Rain | 0 to 7 mph SSW | 82% |
| Sunday Night | 43°F | Chance Light Rain | 0 to 3 mph ESE | 28% |
| Monday | 55°F | Chance Light Rain | 0 to 3 mph ENE | 51% |
| Monday Night | 45°F | Light Rain Likely | 0 to 6 mph ESE | 70% |
Forecast source: National Weather Service (api.weather.gov) for Lake Marcel-Stillwater (47.695, -121.915). Updated through the day.
Growing snapshot for Lake Marcel-Stillwater
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b
More local growing data for Lake Marcel-Stillwater: nearby ZIP 98019 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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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, Monroe, Wa (8 mi from Lake Marcel-Stillwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.