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
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| 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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Home
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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.