Chinook, WA Weather & Growing Conditions
Overnight
54°F
Mostly Cloudy
Mostly cloudy, with a low around 54. North northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Mostly Cloudy | 2 mph NNE | 0% |
| Saturday | 67°F | Partly Sunny | 2 to 9 mph N | 0% |
| Saturday Night | 55°F | Partly Cloudy | 5 to 8 mph NNW | 0% |
| Sunday | 67°F | Partly Sunny | 5 to 14 mph NNW | 0% |
| Sunday Night | 55°F | Partly Cloudy | 5 to 14 mph NNW | 0% |
| Monday | 68°F | Partly Sunny | 3 to 13 mph NNW | 0% |
| Monday Night | 56°F | Mostly Cloudy | 6 to 13 mph NNW | 0% |
| Tuesday | 66°F | Partly Sunny | 5 to 12 mph NNW | 0% |
| Tuesday Night | 54°F | Mostly Cloudy | 2 to 12 mph NNW | 4% |
| Wednesday | 63°F | Partly Sunny | 2 to 8 mph NNW | 4% |
| Wednesday Night | 53°F | Mostly Cloudy | 8 mph NNW | 5% |
| Thursday | 62°F | Partly Sunny then Slight Chance Light Rain | 5 to 15 mph N | 15% |
| Thursday Night | 53°F | Slight Chance Light Rain | 8 to 15 mph NNW | 19% |
| Friday | 62°F | Mostly Sunny | 6 to 14 mph NNW | 9% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Chinook, WA
Last spring frost
Apr 6
First fall frost
Oct 26
Growing season
200 days
Hardiness zone
8b
Explore more for Chinook, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Long Beach Exp Stn, Wa (8.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.