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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.

This Afternoon
74°F
Sunny
Sunny, with a high near 74. West wind around 1 mph.

7-day forecast for Snohomish

WhenTempForecastWindPrecip
This Afternoon 74°F Sunny 1 mph W 0%
Tonight 50°F Partly Cloudy 1 mph NNW 0%
Saturday 73°F Mostly Cloudy 2 mph SSW 0%
Saturday Night 49°F Partly Cloudy 2 mph NNW 0%
Sunday 73°F Mostly Sunny 3 mph NNW 0%
Sunday Night 49°F Mostly Clear 3 mph N 0%
Monday 72°F Mostly Sunny 3 mph NW 0%
Monday Night 49°F Partly Cloudy 0 to 3 mph N 1%
Tuesday 68°F Partly Sunny 2 mph NW 2%
Tuesday Night 48°F Partly Cloudy 2 mph NNE 4%
Wednesday 68°F Partly Sunny 2 mph S 7%
Wednesday Night 49°F Mostly Cloudy 2 mph N 8%
Thursday 70°F Partly Sunny then Slight Chance Light Rain 2 mph N 15%
Thursday Night 51°F Chance Light Rain 2 mph E 33%

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 Sep 19, 2026.