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Port Townsend, WA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Port Townsend, a city in Jefferson County, Washington.

This Afternoon
67°F
Mostly Sunny
Mostly sunny. High near 67, with temperatures falling to around 64 in the afternoon. Northwest wind around 6 mph.

7-day forecast for Port Townsend

WhenTempForecastWindPrecip
This Afternoon 67°F Mostly Sunny 6 mph NW 0%
Tonight 51°F Partly Cloudy 6 mph WNW 0%
Sunday 67°F Mostly Sunny 5 to 9 mph W 0%
Sunday Night 51°F Mostly Cloudy 9 mph W 0%
Monday 68°F Partly Sunny 5 to 9 mph W 1%
Monday Night 52°F Partly Cloudy 7 to 10 mph W 2%
Tuesday 67°F Partly Sunny 7 mph W 7%
Tuesday Night 52°F Mostly Cloudy 3 to 8 mph WSW 8%
Wednesday 63°F Partly Sunny 3 to 7 mph S 14%
Wednesday Night 51°F Mostly Cloudy 8 mph W 11%
Thursday 61°F Mostly Cloudy then Slight Chance Light Rain 6 to 9 mph WNW 15%
Thursday Night 50°F Slight Chance Light Rain 8 mph WNW 24%
Friday 62°F Slight Chance Light Rain 6 to 9 mph WNW 24%
Friday Night 50°F Mostly Cloudy 5 to 8 mph WNW 12%

Forecast source: National Weather Service (api.weather.gov) for Port Townsend (48.122, -122.788). Updated through the day.

Growing snapshot for Port Townsend

Last spring frost
Mar 1
First fall frost
Nov 28
Growing season
274 days
Hardiness zone
8b

More local growing data for Port Townsend: nearby ZIP 98368 weather · frost dates · planting calendar · Washington frost dates

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Climate data from the nearest NOAA station, Port Townsend, Wa (6.1 mi from Port Townsend). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.