Kapowsin, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Kapowsin, a community in Pierce County, Washington.
Tonight
52°F
Mostly Clear
Mostly clear, with a low around 52. Wind around 0 mph.
7-day forecast for Kapowsin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Mostly Clear | 0 mph | 0% |
| Sunday | 76°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 1 mph N | 0% |
| Monday | 73°F | Partly Sunny | 2 mph NNW | 0% |
| Monday Night | 50°F | Partly Cloudy | 1 mph NNW | 0% |
| Tuesday | 69°F | Partly Sunny | 1 mph NW | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 2 mph SSW | 2% |
| Wednesday | 68°F | Partly Sunny | 2 mph WSW | 7% |
| Wednesday Night | 47°F | Mostly Cloudy | 1 mph W | 7% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 2 mph N | 16% |
| Thursday Night | 47°F | Slight Chance Light Rain | 2 mph N | 19% |
| Friday | 63°F | Slight Chance Light Rain | 0 to 3 mph N | 21% |
| Friday Night | 45°F | Slight Chance Light Rain then Mostly Cloudy | 2 mph E | 18% |
| Saturday | 65°F | Partly Sunny | 2 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov) for Kapowsin (46.968, -122.223). Updated through the day.
Growing snapshot for Kapowsin
Last spring frost
Apr 11
First fall frost
Oct 30
Growing season
202 days
Hardiness zone
8b
More local growing data for Kapowsin: nearby ZIP 98338 weather · frost dates · planting calendar · Washington frost dates
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Home
Ketron Island
Climate data from the nearest NOAA station, Mcmillin Rsvr, Wa (7.1 mi from Kapowsin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.