Marrowstone, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marrowstone, a community in Jefferson County, Washington.
This Afternoon
64°F
Mostly Sunny
Mostly sunny, with a high near 64. North northwest wind around 7 mph.
7-day forecast for Marrowstone
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 64°F | Mostly Sunny | 7 mph NNW | 0% |
| Tonight | 53°F | Partly Cloudy | 1 to 6 mph NW | 0% |
| Sunday | 64°F | Mostly Sunny | 2 to 10 mph NW | 0% |
| Sunday Night | 53°F | Mostly Cloudy | 3 to 9 mph WNW | 0% |
| Monday | 65°F | Partly Sunny | 3 to 9 mph WNW | 0% |
| Monday Night | 53°F | Mostly Cloudy | 2 to 9 mph WNW | 3% |
| Tuesday | 63°F | Mostly Cloudy | 2 to 7 mph WNW | 6% |
| Tuesday Night | 52°F | Mostly Cloudy | 3 to 7 mph W | 9% |
| Wednesday | 63°F | Slight Chance Light Rain | 3 to 7 mph S | 15% |
| Wednesday Night | 52°F | Mostly Cloudy | 5 to 9 mph WNW | 14% |
| Thursday | 60°F | Mostly Cloudy then Slight Chance Light Rain | 5 to 13 mph NW | 16% |
| Thursday Night | 51°F | Slight Chance Light Rain | 7 to 10 mph NW | 22% |
| Friday | 60°F | Slight Chance Light Rain | 7 to 13 mph NW | 22% |
| Friday Night | 51°F | Mostly Cloudy | 7 to 10 mph WNW | 13% |
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 Sep 20, 2026.