Copalis Beach, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copalis Beach, a community in Grays Harbor County, Washington.
Tonight
42°F
Partly Cloudy
Partly cloudy, with a low around 42. East southeast wind around 5 mph.
7-day forecast for Copalis Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Partly Cloudy | 5 mph ESE | 4% |
| Wednesday | 57°F | Mostly Cloudy then Light Rain | 5 to 10 mph SE | 89% |
| Wednesday Night | 48°F | Light Rain | 2 to 10 mph SW | 100% |
| Thursday | 57°F | Chance Light Rain | 2 to 8 mph SSW | 40% |
| Thursday Night | 48°F | Light Rain | 8 to 13 mph SSE | 92% |
| Friday | 57°F | Light Rain | 7 to 13 mph SSE | 92% |
| Friday Night | 48°F | Chance Light Rain | 5 to 8 mph SE | 49% |
| Saturday | 59°F | Light Rain | 8 to 17 mph SSE | 77% |
| Saturday Night | 50°F | Showers And Thunderstorms | 14 to 21 mph S | 93% |
| Sunday | 57°F | Light Rain Likely | 3 to 14 mph SW | 61% |
| Sunday Night | 45°F | Chance Light Rain | 6 mph SSE | 40% |
| Monday | 56°F | Light Rain Likely | 6 to 13 mph SE | 68% |
| Monday Night | 49°F | Light Rain | 13 to 17 mph SSE | 82% |
| Tuesday | 58°F | Light Rain | 17 mph SSE | 82% |
Forecast source: National Weather Service (api.weather.gov) for Copalis Beach (47.125, -124.166). Updated through the day.
Growing snapshot for Copalis Beach
Last spring frost
Apr 26
First fall frost
Oct 22
Growing season
180 days
Hardiness zone
9a
More local growing data for Copalis Beach: nearby ZIP 98535 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Humptulips Salmon Hatchery, Wa (10.8 mi from Copalis Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.