Brinnon, WA Weather & Growing Conditions
Overnight
41°F
Patchy Fog
Patchy fog before 5am. Partly cloudy, with a low around 41. Southwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 41°F | Patchy Fog | 2 mph SW | 1% |
| Wednesday | 56°F | Patchy Fog then Light Rain | 2 to 14 mph SSW | 87% |
| Wednesday Night | 43°F | Light Rain then Mostly Cloudy | 9 to 16 mph SW | 97% |
| Thursday | 55°F | Mostly Sunny | 9 to 15 mph SW | 9% |
| Thursday Night | 45°F | Light Rain | 12 to 16 mph SW | 93% |
| Friday | 54°F | Light Rain | 8 to 20 mph SSW | 93% |
| Friday Night | 47°F | Light Rain | 2 to 8 mph SSW | 76% |
| Saturday | 59°F | Light Rain Likely | 2 to 9 mph SSW | 71% |
| Saturday Night | 47°F | Rain | 9 to 22 mph SSW | 89% |
| Sunday | 51°F | Light Rain Likely | 7 to 17 mph SW | 66% |
| Sunday Night | 42°F | Slight Chance Light Rain | 3 to 7 mph WNW | 15% |
| Monday | 50°F | Chance Light Rain | 6 mph SW | 51% |
| Monday Night | 46°F | Rain Likely | 6 to 14 mph SSW | 69% |
| Tuesday | 53°F | Light Rain Likely | 13 mph SW | 69% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brinnon, WA
Last spring frost
Mar 24
First fall frost
Nov 15
Growing season
235 days
Hardiness zone
8b
Explore more for Brinnon, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Cushman Powerhouse #2, Wa (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.