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Steilacoom, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Steilacoom, a town in Pierce County, Washington.

Overnight
50°F
Cloudy
Cloudy, with a low around 50. West wind around 1 mph.

7-day forecast for Steilacoom

WhenTempForecastWindPrecip
Overnight 50°F Cloudy 1 mph W 0%
Saturday 72°F Partly Sunny 3 mph WNW 0%
Saturday Night 51°F Mostly Clear 2 mph NNW 0%
Sunday 73°F Mostly Sunny 1 to 5 mph N 0%
Sunday Night 51°F Mostly Clear 1 to 5 mph NNW 0%
Monday 71°F Mostly Sunny 3 mph WNW 0%
Monday Night 52°F Partly Cloudy 2 mph NW 0%
Tuesday 70°F Partly Sunny 3 mph W 0%
Tuesday Night 51°F Partly Cloudy 2 mph WSW 1%
Wednesday 69°F Partly Sunny 1 to 5 mph WSW 8%
Wednesday Night 52°F Mostly Cloudy 0 to 5 mph NW 8%
Thursday 66°F Mostly Cloudy then Slight Chance Light Rain 0 to 7 mph NNE 20%
Thursday Night 50°F Slight Chance Light Rain 1 to 7 mph N 21%
Friday 65°F Mostly Sunny 1 to 7 mph NNW 12%

Forecast source: National Weather Service (api.weather.gov) for Steilacoom (47.169, -122.592). Updated through the day.

Growing snapshot for Steilacoom

Last spring frost
Mar 11
First fall frost
Nov 21
Growing season
254 days
Hardiness zone
8b

More local growing data for Steilacoom: nearby ZIP 98498 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Tacoma Narrows Ap, Wa (7.5 mi from Steilacoom). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.