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Snohomish, WA Weather & Growing Conditions

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

Tonight
37°F
Patchy Fog
Patchy fog after 10pm. Mostly clear, with a low around 37. East southeast wind around 2 mph.

7-day forecast for Snohomish

WhenTempForecastWindPrecip
Tonight 37°F Patchy Fog 2 mph ESE 3%
Wednesday 59°F Patchy Fog then Slight Chance Light Rain 1 to 5 mph SSE 17%
Wednesday Night 47°F Light Rain 5 to 8 mph SSE 95%
Thursday 56°F Chance Light Rain then Partly Sunny 5 mph SSE 47%
Thursday Night 45°F Light Rain 5 to 8 mph SE 80%
Friday 56°F Light Rain 5 to 8 mph SSE 80%
Friday Night 46°F Chance Light Rain 5 mph SE 50%
Saturday 62°F Chance Light Rain 3 mph SE 32%
Saturday Night 49°F Light Rain 3 to 13 mph SSE 78%
Sunday 56°F Light Rain 2 to 12 mph S 78%
Sunday Night 42°F Chance Light Rain 5 mph SE 32%
Monday 56°F Chance Light Rain 3 mph SE 53%
Monday Night 46°F Light Rain Likely 3 to 9 mph SE 71%
Tuesday 58°F Light Rain Likely 6 to 9 mph SSE 71%

Forecast source: National Weather Service (api.weather.gov) for Snohomish (47.929, -122.093). Updated through the day.

Growing snapshot for Snohomish

Last spring frost
Apr 17
First fall frost
Oct 23
Growing season
188 days
Hardiness zone
8b

More local growing data for Snohomish: nearby ZIP 98296 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Monroe, Wa (5 mi from Snohomish). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.