Roche Harbor, WA Weather & Growing Conditions
Today
72°F
Sunny
Sunny, with a high near 72. North northwest wind around 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 72°F | Sunny | 8 mph NNW | 0% |
| Tonight | 59°F | Patchy Smoke | 1 to 7 mph N | 0% |
| Wednesday | 74°F | Sunny | 3 to 7 mph NNW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 3 mph W | 0% |
| Thursday | 73°F | Sunny | 1 to 5 mph WNW | 0% |
| Thursday Night | 59°F | Mostly Clear | 2 mph SSW | 0% |
| Friday | 77°F | Sunny | 5 mph S | 0% |
| Friday Night | 60°F | Mostly Clear | 0 to 3 mph SSW | 0% |
| Saturday | 75°F | Sunny | 0 to 3 mph SSW | 0% |
| Saturday Night | 59°F | Mostly Clear | 3 mph SSW | 0% |
| Sunday | 74°F | Sunny | 1 to 5 mph SW | 0% |
| Sunday Night | 58°F | Mostly Clear | 3 mph SW | 1% |
| Monday | 74°F | Mostly Sunny | 5 mph W | 1% |
| Monday Night | 58°F | Partly Cloudy | 3 mph SSW | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Roche Harbor, WA
Last spring frost
Feb 26
First fall frost
Nov 29
Growing season
276 days
Hardiness zone
9a
Explore more for Roche Harbor, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Olga 2 Se, Wa (6.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.