Lake Cavanaugh, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Cavanaugh, a community in Snohomish County, Washington.
Today
71°F
Mostly Sunny
Mostly sunny. High near 71, with temperatures falling to around 67 in the afternoon. West southwest wind 0 to 3 mph.
7-day forecast for Lake Cavanaugh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Mostly Sunny | 0 to 3 mph WSW | 0% |
| Tonight | 50°F | Mostly Clear | 1 to 5 mph NE | 0% |
| Sunday | 73°F | Mostly Sunny | 3 mph W | 0% |
| Sunday Night | 49°F | Partly Cloudy | 0 to 3 mph NE | 0% |
| Monday | 67°F | Mostly Sunny | 3 mph W | 0% |
| Monday Night | 48°F | Partly Cloudy | 0 to 3 mph NNE | 0% |
| Tuesday | 63°F | Partly Sunny | 3 mph S | 0% |
| Tuesday Night | 47°F | Mostly Cloudy | 0 to 3 mph NNE | 11% |
| Wednesday | 62°F | Partly Sunny then Slight Chance Light Rain | 0 to 3 mph S | 16% |
| Wednesday Night | 47°F | Slight Chance Light Rain then Mostly Cloudy | 3 mph NE | 16% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 3 mph N | 18% |
| Thursday Night | 46°F | Chance Light Rain | 3 mph NNE | 26% |
| Friday | 59°F | Chance Light Rain | 0 to 3 mph WNW | 26% |
| Friday Night | 44°F | Slight Chance Light Rain | 5 mph NNW | 16% |
Forecast source: National Weather Service (api.weather.gov) for Lake Cavanaugh (48.317, -122.011). Updated through the day.
Growing snapshot for Lake Cavanaugh
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
8b
More local growing data for Lake Cavanaugh: nearby ZIP 98223 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 Goodwin
Lake Roesiger
Lake Stevens
Lake Stickney
Larch Way
Lochsloy
Climate data from the nearest NOAA station, Arlington, Wa (8.1 mi from Lake Cavanaugh). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.