Bainbridge Island, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bainbridge Island, a city in Kitsap County, Washington.
Tonight
51°F
Mostly Clear then Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 51. North wind around 3 mph.
7-day forecast for Bainbridge Island
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Mostly Clear then Patchy Fog | 3 mph N | 0% |
| Sunday | 71°F | Patchy Fog then Mostly Sunny | 1 to 7 mph NNE | 0% |
| Sunday Night | 50°F | Partly Cloudy then Patchy Fog | 0 to 6 mph N | 0% |
| Monday | 71°F | Areas Of Fog then Mostly Cloudy | 0 to 5 mph NNE | 0% |
| Monday Night | 53°F | Mostly Cloudy | 1 to 5 mph NE | 3% |
| Tuesday | 69°F | Mostly Cloudy | 1 to 5 mph SE | 3% |
| Tuesday Night | 52°F | Mostly Cloudy | 3 mph SE | 3% |
| Wednesday | 66°F | Mostly Cloudy | 2 to 7 mph SSW | 9% |
| Wednesday Night | 51°F | Mostly Cloudy | 2 to 7 mph N | 4% |
| Thursday | 64°F | Mostly Cloudy then Slight Chance Light Rain | 2 to 9 mph N | 21% |
| Thursday Night | 51°F | Chance Light Rain | 2 to 9 mph N | 43% |
| Friday | 62°F | Chance Light Rain | 2 to 8 mph S | 49% |
| Friday Night | 49°F | Chance Light Rain then Mostly Cloudy | 3 to 7 mph SSW | 32% |
| Saturday | 64°F | Mostly Sunny | 3 to 8 mph SW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Bainbridge Island (47.642, -122.508). Updated through the day.
Growing snapshot for Bainbridge Island
Last spring frost
Mar 29
First fall frost
Nov 14
Growing season
227 days
Hardiness zone
9a
More local growing data for Bainbridge Island: nearby ZIP 98110 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Bangor Base
Bethel
Bremerton
Brinnon
Burley
Chico
East Port Orchard
Enetai
Erlands Point
Gorst
Hansville
Indianola
Keyport
Kingston
Kitsap Lake
Lofall
Manchester
Navy Yard City
Parkwood
Port Gamble Tribal Community
Port Orchard
Poulsbo
Rocky Point
Seabeck
Silverdale
Southworth
Suquamish
Tracyton
Climate data from the nearest NOAA station, Bremerton, Wa (8.8 mi from Bainbridge Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.