Marrowstone, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marrowstone, a community in Jefferson County, Washington.
Overnight
55°F
Clear
Clear. Low around 55, with temperatures rising to around 58 overnight. North northwest wind around 7 mph.
7-day forecast for Marrowstone
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Clear | 7 mph NNW | 0% |
| Tuesday | 74°F | Sunny | 8 to 13 mph NNW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 5 to 12 mph NNW | 0% |
| Wednesday | 76°F | Sunny | 6 to 12 mph NNW | 0% |
| Wednesday Night | 57°F | Clear | 3 to 10 mph NW | 0% |
| Thursday | 78°F | Sunny | 3 to 9 mph NW | 0% |
| Thursday Night | 57°F | Mostly Clear | 2 to 8 mph W | 0% |
| Friday | 75°F | Sunny | 2 to 9 mph SW | 0% |
| Friday Night | 56°F | Mostly Clear | 2 to 9 mph WNW | 0% |
| Saturday | 71°F | Sunny | 2 to 13 mph NW | 1% |
| Saturday Night | 56°F | Mostly Clear | 2 to 14 mph WNW | 1% |
| Sunday | 69°F | Sunny | 2 to 8 mph NW | 1% |
| Sunday Night | 55°F | Mostly Clear | 2 to 9 mph WNW | 1% |
| Monday | 69°F | Mostly Sunny | 2 to 9 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Marrowstone (48.032, -122.684). Updated through the day.
Growing snapshot for Marrowstone
Last spring frost
Mar 1
First fall frost
Nov 28
Growing season
274 days
Hardiness zone
9a
More local growing data for Marrowstone: nearby ZIP 98358 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Port Townsend, Wa (5.9 mi from Marrowstone). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.