Brinnon, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brinnon, a community in Kitsap County, Washington.
Today
87°F
Sunny then Areas Of Smoke
Areas of smoke after 1pm. Sunny, with a high near 87. Northeast wind 2 to 8 mph.
7-day forecast for Brinnon
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 87°F | Sunny then Areas Of Smoke | 2 to 8 mph NE | 0% |
| Tonight | 61°F | Smoke | 2 to 7 mph NNW | 0% |
| Wednesday | 90°F | Areas Of Smoke | 2 to 6 mph NE | 0% |
| Wednesday Night | 63°F | Clear | 0 to 6 mph N | 0% |
| Thursday | 89°F | Sunny | 0 to 5 mph ESE | 0% |
| Thursday Night | 62°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Friday | 86°F | Sunny | 0 to 6 mph SSE | 0% |
| Friday Night | 59°F | Mostly Clear | 0 to 6 mph NNE | 0% |
| Saturday | 78°F | Sunny | 0 to 8 mph E | 2% |
| Saturday Night | 57°F | Mostly Clear | 0 to 8 mph NNE | 2% |
| Sunday | 74°F | Sunny | 0 to 6 mph ESE | 2% |
| Sunday Night | 56°F | Mostly Clear | 0 to 6 mph NNE | 1% |
| Monday | 73°F | Sunny | 0 to 5 mph E | 5% |
| Monday Night | 56°F | Mostly Clear | 0 to 5 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Brinnon (47.669, -122.917). Updated through the day.
Growing snapshot for Brinnon
Last spring frost
Mar 29
First fall frost
Nov 14
Growing season
227 days
Hardiness zone
8b
More local growing data for Brinnon: nearby ZIP 98380 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Bainbridge Island
Bangor Base
Bethel
Bremerton
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 (9.4 mi from Brinnon). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.