Greenwater, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Greenwater, a community in King County, Washington.
Tonight
32°F
Mostly Clear
Mostly clear, with a low around 32. East southeast wind around 5 mph.
7-day forecast for Greenwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 32°F | Mostly Clear | 5 mph ESE | 2% |
| Wednesday | 59°F | Mostly Sunny then Slight Chance Light Rain | 1 to 6 mph NNE | 16% |
| Wednesday Night | 36°F | Light Rain | 5 to 10 mph WNW | 95% |
| Thursday | 53°F | Slight Chance Light Rain then Partly Sunny | 5 to 8 mph W | 21% |
| Thursday Night | 33°F | Mostly Cloudy then Light Rain Likely | 5 to 10 mph SSE | 57% |
| Friday | 54°F | Light Rain Likely | 3 to 10 mph SE | 70% |
| Friday Night | 38°F | Light Rain Likely | 3 to 7 mph SE | 70% |
| Saturday | 62°F | Partly Sunny then Slight Chance Light Rain | 7 mph ESE | 16% |
| Saturday Night | 37°F | Light Rain | 7 to 15 mph SSE | 77% |
| Sunday | 52°F | Light Rain Likely | 3 to 10 mph WSW | 71% |
| Sunday Night | 32°F | Slight Chance Light Rain then Mostly Cloudy | 3 to 7 mph SSE | 18% |
| Monday | 55°F | Chance Light Rain | 2 to 7 mph E | 37% |
| Monday Night | 34°F | Chance Light Rain | 2 to 10 mph ESE | 51% |
| Tuesday | 56°F | Chance Light Rain | 7 mph SE | 51% |
Forecast source: National Weather Service (api.weather.gov) for Greenwater (47.144, -121.628). Updated through the day.
Growing snapshot for Greenwater
Last spring frost
Apr 18
First fall frost
Oct 31
Growing season
196 days
Hardiness zone
8a
More local growing data for Greenwater: nearby ZIP 98022 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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Baring
Beaux Arts Village
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Black Diamond
Bothell
Boulevard Park
Bryn Mawr-Skyway
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Carnation
Clyde Hill
Cottage Lake
Covington
Des Moines
Duvall
East Renton Highlands
Fairwood
Fall City
Federal Way
High Bridge
Hobart
Hunts Point
Index
Issaquah
Kenmore
Kent
Kirkland
Lake Forest Park
Climate data from the nearest NOAA station, Mud Mtn Dam, Wa (12 mi from Greenwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.