Alderton, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alderton, a community in Pierce County, Washington.
Today
60°F
Mostly Cloudy
Mostly cloudy. High near 60, with temperatures falling to around 55 in the afternoon. North northwest wind around 1 mph.
7-day forecast for Alderton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 60°F | Mostly Cloudy | 1 mph NNW | 4% |
| Tonight | 40°F | Partly Cloudy then Patchy Fog | 0 mph | 3% |
| Wednesday | 60°F | Patchy Fog then Slight Chance Light Rain | 1 mph SSW | 19% |
| Wednesday Night | 47°F | Light Rain | 1 to 6 mph S | 92% |
| Thursday | 60°F | Slight Chance Light Rain then Partly Sunny | 2 to 6 mph SSW | 23% |
| Thursday Night | 46°F | Light Rain | 2 mph S | 76% |
| Friday | 59°F | Light Rain | 5 mph S | 76% |
| Friday Night | 46°F | Chance Light Rain | 2 mph SSE | 44% |
| Saturday | 65°F | Chance Light Rain | 1 mph S | 26% |
| Saturday Night | 49°F | Rain | 1 to 10 mph S | 76% |
| Sunday | 59°F | Light Rain | 2 to 10 mph SSW | 76% |
| Sunday Night | 43°F | Slight Chance Light Rain | 2 mph SE | 22% |
| Monday | 60°F | Chance Light Rain | 2 mph SE | 50% |
| Monday Night | 47°F | Light Rain Likely | 5 mph SSE | 68% |
Forecast source: National Weather Service (api.weather.gov) for Alderton (47.176, -122.222). Updated through the day.
Growing snapshot for Alderton
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
8b
More local growing data for Alderton: nearby ZIP 98390 weather · frost dates · planting calendar · Washington frost dates
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Home
Kapowsin
Ketron Island
Climate data from the nearest NOAA station, Mcmillin Rsvr, Wa (5.4 mi from Alderton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.