Belfair, WA Weather & Growing Conditions
Tonight
51°F
Partly Cloudy
Partly cloudy. Low around 51, with temperatures rising to around 53 overnight. Southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Partly Cloudy | 0 to 5 mph SW | 0% |
| Saturday | 72°F | Partly Sunny | 0 to 3 mph SSW | 1% |
| Saturday Night | 51°F | Partly Cloudy | 3 mph N | 0% |
| Sunday | 74°F | Mostly Sunny | 1 to 5 mph NE | 0% |
| Sunday Night | 51°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Monday | 71°F | Mostly Sunny | 0 to 3 mph SSE | 1% |
| Monday Night | 51°F | Partly Cloudy | 0 to 3 mph NNE | 3% |
| Tuesday | 69°F | Partly Sunny | 0 to 3 mph SSW | 2% |
| Tuesday Night | 49°F | Partly Cloudy | 0 to 3 mph NW | 2% |
| Wednesday | 68°F | Partly Sunny | 0 to 5 mph ESE | 5% |
| Wednesday Night | 50°F | Mostly Cloudy | 1 to 5 mph NNE | 8% |
| Thursday | 69°F | Partly Sunny then Slight Chance Light Rain | 1 to 6 mph SSE | 16% |
| Thursday Night | 51°F | Chance Light Rain | 2 to 6 mph SW | 30% |
| Friday | 65°F | Chance Light Rain | 2 to 8 mph SW | 30% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Belfair, WA
Last spring frost
Mar 29
First fall frost
Nov 14
Growing season
227 days
Hardiness zone
8b
Explore more for Belfair, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Bremerton, Wa (13 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.