Port Townsend, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Townsend, a city in Jefferson County, Washington.
Today
67°F
Partly Sunny
Partly sunny. High near 67, with temperatures falling to around 64 in the afternoon. North wind 2 to 6 mph.
7-day forecast for Port Townsend
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Partly Sunny | 2 to 6 mph N | 0% |
| Tonight | 51°F | Partly Cloudy | 6 mph WNW | 0% |
| Sunday | 66°F | Partly Sunny | 6 to 9 mph WNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 9 mph WNW | 0% |
| Monday | 68°F | Mostly Sunny | 5 to 9 mph WSW | 0% |
| Monday Night | 52°F | Mostly Cloudy | 7 to 10 mph WNW | 2% |
| Tuesday | 66°F | Partly Sunny | 7 mph WNW | 2% |
| Tuesday Night | 51°F | Mostly Cloudy | 3 to 7 mph WSW | 11% |
| Wednesday | 64°F | Slight Chance Light Rain | 3 to 7 mph SSW | 18% |
| Wednesday Night | 51°F | Mostly Cloudy | 7 mph WNW | 13% |
| Thursday | 62°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 9 mph WNW | 17% |
| Thursday Night | 51°F | Slight Chance Light Rain | 8 mph WNW | 18% |
| Friday | 62°F | Slight Chance Light Rain then Partly Sunny | 8 mph WNW | 16% |
| Friday Night | 50°F | Partly Cloudy | 5 to 8 mph WNW | 11% |
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
Nearby towns & communities
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 19, 2026.