Port Townsend, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Townsend, a city in Jefferson County, Washington.
Overnight
55°F
Clear
Clear. Low around 55, with temperatures rising to around 57 overnight. Northwest wind around 6 mph.
7-day forecast for Port Townsend
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Clear | 6 mph NW | 0% |
| Tuesday | 78°F | Sunny | 9 mph NW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 3 to 9 mph WNW | 0% |
| Wednesday | 81°F | Sunny | 5 to 8 mph NW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 2 to 7 mph WNW | 0% |
| Thursday | 81°F | Sunny | 2 to 6 mph WNW | 0% |
| Thursday Night | 58°F | Mostly Clear | 7 mph W | 0% |
| Friday | 79°F | Sunny | 3 to 8 mph WNW | 0% |
| Friday Night | 56°F | Mostly Clear | 6 to 10 mph W | 0% |
| Saturday | 73°F | Sunny | 5 to 13 mph W | 1% |
| Saturday Night | 55°F | Mostly Clear | 5 to 14 mph W | 1% |
| Sunday | 71°F | Mostly Sunny | 3 to 7 mph W | 1% |
| Sunday Night | 55°F | Mostly Clear | 5 to 10 mph WNW | 1% |
| Monday | 71°F | Mostly Sunny | 7 mph WNW | 2% |
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 Aug 4, 2026.