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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
39°F
Mostly Clear
Mostly clear, with a low around 39. East wind around 5 mph.

7-day forecast for Lake Cavanaugh

WhenTempForecastWindPrecip
Overnight 39°F Mostly Clear 5 mph E 2%
Wednesday 55°F Mostly Sunny then Slight Chance Light Rain 3 to 10 mph SSE 24%
Wednesday Night 43°F Light Rain 6 to 15 mph S 98%
Thursday 50°F Chance Light Rain then Partly Sunny 7 mph S 27%
Thursday Night 42°F Light Rain 7 to 15 mph SE 92%
Friday 49°F Light Rain 5 to 14 mph ESE 92%
Friday Night 44°F Light Rain 5 to 9 mph ESE 76%
Saturday 57°F Chance Light Rain 3 to 9 mph ESE 39%
Saturday Night 44°F Rain 5 to 14 mph SE 84%
Sunday 49°F Light Rain 1 to 12 mph SSE 84%
Sunday Night 40°F Chance Light Rain 1 to 8 mph E 29%
Monday 50°F Chance Light Rain 3 to 7 mph E 46%
Monday Night 43°F Light Rain Likely 3 to 12 mph ESE 65%
Tuesday 52°F Light Rain Likely 10 mph ESE 65%

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

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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 Nov 4, 2026.