Steilacoom, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Steilacoom, a town in Pierce County, Washington.
This Afternoon
57°F
Partly Sunny
Partly sunny. High near 57, with temperatures falling to around 53 in the afternoon. North northeast wind around 3 mph.
7-day forecast for Steilacoom
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Partly Sunny | 3 mph NNE | 4% |
| Tonight | 40°F | Partly Cloudy then Patchy Fog | 1 mph E | 3% |
| Wednesday | 58°F | Patchy Fog then Chance Light Rain | 1 to 5 mph S | 32% |
| Wednesday Night | 48°F | Light Rain | 5 to 12 mph SSW | 98% |
| Thursday | 58°F | Slight Chance Light Rain then Partly Sunny | 6 to 9 mph SSW | 17% |
| Thursday Night | 47°F | Light Rain | 6 mph S | 77% |
| Friday | 57°F | Light Rain | 5 to 10 mph S | 77% |
| Friday Night | 47°F | Chance Light Rain | 1 to 5 mph S | 46% |
| Saturday | 61°F | Chance Light Rain | 3 mph S | 34% |
| Saturday Night | 50°F | Light Rain | 2 to 18 mph SSW | 75% |
| Sunday | 57°F | Light Rain Likely | 5 to 16 mph SW | 71% |
| Sunday Night | 44°F | Chance Light Rain | 1 to 5 mph SSE | 26% |
| Monday | 57°F | Chance Light Rain | 1 to 6 mph SE | 54% |
| Monday Night | 48°F | Light Rain Likely | 5 to 10 mph S | 70% |
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 Nov 4, 2026.