Alderton, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alderton, a community in Pierce County, Washington.
Today
74°F
Partly Sunny
Partly sunny, with a high near 74. North northwest wind around 2 mph.
7-day forecast for Alderton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Partly Sunny | 2 mph NNW | 0% |
| Tonight | 51°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 76°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 50°F | Mostly Clear | 2 mph N | 0% |
| Monday | 73°F | Mostly Sunny | 2 mph WNW | 0% |
| Monday Night | 51°F | Partly Cloudy | 2 mph N | 0% |
| Tuesday | 70°F | Partly Sunny | 2 mph NNW | 1% |
| Tuesday Night | 50°F | Mostly Cloudy | 1 mph SW | 1% |
| Wednesday | 70°F | Partly Sunny | 2 mph W | 12% |
| Wednesday Night | 50°F | Mostly Cloudy | 2 mph NW | 12% |
| Thursday | 67°F | Mostly Cloudy then Slight Chance Light Rain | 0 to 3 mph N | 19% |
| Thursday Night | 49°F | Slight Chance Light Rain | 0 to 3 mph NNE | 19% |
| Friday | 66°F | Slight Chance Light Rain then Partly Sunny | 0 to 3 mph NW | 15% |
| Friday Night | 47°F | Partly Cloudy | 0 to 3 mph ENE | 13% |
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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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 Sep 19, 2026.