Clayton, WA Weather & Growing Conditions
Tonight
47°F
Mostly Clear
Mostly clear, with a low around 47. North wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Clear | 1 mph N | 0% |
| Saturday | 76°F | Sunny | 0 to 3 mph S | 0% |
| Saturday Night | 48°F | Mostly Clear | 1 mph W | 0% |
| Sunday | 78°F | Sunny | 2 mph E | 0% |
| Sunday Night | 48°F | Mostly Clear | 2 mph NE | 0% |
| Monday | 79°F | Sunny | 1 to 5 mph SE | 0% |
| Monday Night | 49°F | Partly Cloudy | 0 to 3 mph SW | 0% |
| Tuesday | 75°F | Mostly Sunny | 0 to 5 mph S | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 0 to 5 mph SW | 1% |
| Wednesday | 71°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Wednesday Night | 46°F | Partly Cloudy | 1 to 5 mph NW | 1% |
| Thursday | 75°F | Mostly Sunny | 3 mph E | 3% |
| Thursday Night | 48°F | Mostly Cloudy | 3 mph NE | 9% |
| Friday | 71°F | Partly Sunny | 1 to 6 mph SW | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Clayton, WA
Last spring frost
May 22
First fall frost
Sep 14
Growing season
112 days
Hardiness zone
6a
Explore more for Clayton, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Deer Park Ap, Wa (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.