Anderson Island, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Anderson Island, a community in Pierce County, Washington.
Overnight
43°F
Mostly Cloudy
Mostly cloudy, with a low around 43. South southwest wind around 2 mph.
7-day forecast for Anderson Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Mostly Cloudy | 2 mph SSW | 1% |
| Wednesday | 57°F | Patchy Fog then Light Rain | 2 to 12 mph SSW | 77% |
| Wednesday Night | 49°F | Light Rain | 10 to 17 mph SSW | 95% |
| Thursday | 57°F | Mostly Sunny | 8 to 14 mph SSW | 10% |
| Thursday Night | 48°F | Mostly Cloudy then Light Rain | 7 to 13 mph S | 77% |
| Friday | 55°F | Light Rain | 6 to 17 mph S | 82% |
| Friday Night | 50°F | Light Rain Likely | 2 to 6 mph S | 70% |
| Saturday | 60°F | Chance Light Rain | 2 mph S | 41% |
| Saturday Night | 52°F | Light Rain | 2 to 20 mph SSW | 83% |
| Sunday | 55°F | Light Rain Likely | 3 to 16 mph SSW | 63% |
| Sunday Night | 46°F | Slight Chance Light Rain | 3 mph SSE | 15% |
| Monday | 56°F | Chance Light Rain | 3 mph ESE | 41% |
| Monday Night | 49°F | Light Rain Likely | 2 to 13 mph S | 58% |
| Tuesday | 57°F | Light Rain Likely | 6 to 13 mph S | 58% |
Forecast source: National Weather Service (api.weather.gov) for Anderson Island (47.150, -122.682). Updated through the day.
Growing snapshot for Anderson Island
Last spring frost
Mar 11
First fall frost
Nov 21
Growing season
254 days
Hardiness zone
8b
More local growing data for Anderson Island: nearby ZIP 98303 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Tacoma Narrows Ap, Wa (9.5 mi from Anderson Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.