Three Lakes, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Three Lakes, a community in Snohomish County, Washington.
Today
72°F
Mostly Sunny
Mostly sunny. High near 72, with temperatures falling to around 70 in the afternoon. North northwest wind around 1 mph.
7-day forecast for Three Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Mostly Sunny | 1 mph NNW | 0% |
| Tonight | 50°F | Mostly Clear | 1 mph NNW | 0% |
| Sunday | 72°F | Mostly Sunny | 1 mph NW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 1 mph N | 0% |
| Monday | 70°F | Mostly Sunny | 1 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 1 mph NNW | 0% |
| Tuesday | 67°F | Partly Sunny | 1 mph NNW | 0% |
| Tuesday Night | 48°F | Mostly Cloudy | 1 mph NE | 11% |
| Wednesday | 67°F | Partly Sunny then Slight Chance Light Rain | 1 mph E | 17% |
| Wednesday Night | 48°F | Slight Chance Light Rain then Mostly Cloudy | 1 mph N | 17% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 1 mph N | 19% |
| Thursday Night | 47°F | Slight Chance Light Rain | 1 mph NNW | 20% |
| Friday | 63°F | Slight Chance Light Rain | 1 mph NNW | 19% |
| Friday Night | 46°F | Slight Chance Light Rain | 1 mph NNE | 15% |
Forecast source: National Weather Service (api.weather.gov) for Three Lakes (47.955, -121.979). Updated through the day.
Growing snapshot for Three Lakes
Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b
More local growing data for Three Lakes: nearby ZIP 98290 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Alderwood Manor
Arlington
Arlington Heights
Bothell East
Bothell West
Brier
Bunk Foss
Canyon Creek
Cathcart
Cavalero
Chain Lake
Clearview
Darrington
Eastmont
Edmonds
Esperance
Everett
Fobes Hill
Gold Bar
Granite Falls
Hat Island
Kayak Point
Lake Bosworth
Lake Cassidy
Lake Cavanaugh
Lake Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Climate data from the nearest NOAA station, Monroe, Wa (7.6 mi from Three Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.