Harman US

Friday Harbor, WA Weather & Growing Conditions

Today
80°F
Sunny
Sunny, with a high near 80. North wind 3 to 7 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 80°F Sunny 3 to 7 mph N 0%
Tonight 57°F Patchy Smoke 0 to 3 mph NW 0%
Wednesday 83°F Sunny 3 to 7 mph NNW 0%
Wednesday Night 57°F Mostly Clear 0 to 3 mph W 0%
Thursday 83°F Sunny 0 to 3 mph NNW 0%
Thursday Night 58°F Mostly Clear 2 mph SW 0%
Friday 83°F Sunny 1 to 5 mph SSW 0%
Friday Night 57°F Mostly Clear 1 to 5 mph WSW 0%
Saturday 78°F Sunny 1 to 5 mph WSW 0%
Saturday Night 55°F Mostly Clear 5 mph WSW 0%
Sunday 75°F Sunny 3 mph SW 0%
Sunday Night 54°F Mostly Clear 3 mph WSW 1%
Monday 75°F Sunny 5 mph WSW 1%
Monday Night 54°F Partly Cloudy 3 mph WSW 1%

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

Growing snapshot for Friday Harbor, WA

Last spring frost
Mar 26
First fall frost
Nov 10
Growing season
230 days
Hardiness zone
9a

Explore more for Friday Harbor, WA: full frost dates · planting calendar · Washington frost dates

Climate data from the nearest NOAA station, Friday Harbor Ap, Wa (3.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.