Harman US

Roche Harbor, WA Weather & Growing Conditions

Today
79°F
Sunny
Sunny, with a high near 79. North wind around 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 79°F Sunny 7 mph N 0%
Tonight 61°F Patchy Smoke 0 to 6 mph NW 0%
Wednesday 82°F Sunny 3 to 7 mph NNW 0%
Wednesday Night 61°F Mostly Clear 0 to 3 mph NW 0%
Thursday 82°F Sunny 0 to 3 mph NW 0%
Thursday Night 61°F Mostly Clear 2 mph SSW 0%
Friday 81°F Sunny 3 mph SSW 0%
Friday Night 59°F Mostly Clear 0 to 3 mph SW 0%
Saturday 75°F Sunny 0 to 3 mph SSW 0%
Saturday Night 58°F Mostly Clear 3 mph WSW 0%
Sunday 73°F Sunny 3 mph SW 0%
Sunday Night 57°F Mostly Clear 3 mph WSW 1%
Monday 73°F Mostly Sunny 5 mph WSW 1%
Monday Night 57°F Partly Cloudy 3 mph SW 1%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Roche Harbor, WA

Last spring frost
Mar 26
First fall frost
Nov 10
Growing season
230 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, Friday Harbor Ap, Wa (6.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.