Lake Cavanaugh, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Lake Cavanaugh, a community in Snohomish County, Washington.

Overnight

51°F

Clear

Clear. Low around 51, with temperatures rising to around 53 overnight. Northeast wind around 6 mph.

7-day forecast for Lake Cavanaugh

When	Temp	Forecast	Wind	Precip
Overnight	51°F	Clear	6 mph NE	0%
Tuesday	85°F	Smoke	1 to 6 mph W	0%
Tuesday Night	55°F	Patchy Smoke	6 mph NNE	0%
Wednesday	89°F	Areas Of Smoke	1 to 5 mph WSW	0%
Wednesday Night	57°F	Clear	2 to 6 mph N	0%
Thursday	89°F	Sunny	5 mph W	0%
Thursday Night	57°F	Mostly Clear	5 mph E	0%
Friday	84°F	Sunny	1 to 6 mph SW	0%
Friday Night	54°F	Mostly Clear	1 to 6 mph N	0%
Saturday	76°F	Sunny	0 to 6 mph NW	0%
Saturday Night	52°F	Mostly Clear	1 to 6 mph NNE	1%
Sunday	73°F	Mostly Sunny	1 to 6 mph WSW	1%
Sunday Night	51°F	Mostly Clear	1 to 6 mph N	4%
Monday	73°F	Mostly Sunny	0 to 6 mph SW	4%

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

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

All Washington locations ›

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 Aug 4, 2026.