Marrowstone, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Marrowstone, a community in Jefferson County, Washington.
Overnight
53°F
Cloudy
Cloudy, with a low around 53. East wind around 1 mph.
7-day forecast for Marrowstone
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 53°F | Cloudy | 1 mph E | 0% |
| Saturday | 64°F | Partly Sunny | 1 to 8 mph ESE | 0% |
| Saturday Night | 53°F | Partly Cloudy | 2 to 7 mph NNW | 0% |
| Sunday | 64°F | Partly Sunny | 2 to 10 mph NW | 0% |
| Sunday Night | 53°F | Partly Cloudy | 3 to 10 mph WNW | 0% |
| Monday | 65°F | Mostly Sunny | 3 to 10 mph WSW | 0% |
| Monday Night | 54°F | Partly Cloudy | 3 to 10 mph WNW | 2% |
| Tuesday | 63°F | Partly Sunny | 3 to 7 mph NW | 2% |
| Tuesday Night | 52°F | Mostly Cloudy | 2 to 7 mph W | 11% |
| Wednesday | 63°F | Slight Chance Light Rain | 3 to 8 mph S | 15% |
| Wednesday Night | 53°F | Mostly Cloudy | 8 mph NW | 14% |
| Thursday | 61°F | Mostly Cloudy then Slight Chance Light Rain | 6 to 12 mph NW | 18% |
| Thursday Night | 52°F | Slight Chance Light Rain | 10 mph WNW | 18% |
| Friday | 61°F | Partly Sunny | 8 to 12 mph NW | 14% |
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 19, 2026.