Clayton, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clayton, a community in Stevens County, Washington.
Tonight
47°F
Mostly Clear
Mostly clear, with a low around 47. Northeast wind around 1 mph.
7-day forecast for Clayton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Mostly Clear | 1 mph NE | 0% |
| Sunday | 79°F | Sunny | 2 mph SE | 0% |
| Sunday Night | 47°F | Mostly Clear | 2 mph NE | 0% |
| Monday | 80°F | Sunny | 3 mph SE | 0% |
| Monday Night | 48°F | Partly Cloudy | 2 mph NE | 0% |
| Tuesday | 77°F | Mostly Sunny | 0 to 6 mph S | 0% |
| Tuesday Night | 48°F | Partly Cloudy | 0 to 6 mph SW | 1% |
| Wednesday | 70°F | Mostly Sunny | 0 to 7 mph S | 1% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 7 mph S | 4% |
| Thursday | 68°F | Partly Sunny | 0 to 3 mph SE | 7% |
| Thursday Night | 45°F | Mostly Cloudy | 3 mph NE | 12% |
| Friday | 66°F | Partly Sunny then Slight Chance Rain Showers | 1 to 5 mph SW | 19% |
| Friday Night | 42°F | Slight Chance Rain Showers | 5 mph W | 19% |
| Saturday | 63°F | Slight Chance Rain Showers then Partly Sunny | 5 mph W | 16% |
Forecast source: National Weather Service (api.weather.gov) for Clayton (48.001, -117.561). Updated through the day.
Growing snapshot for Clayton
Last spring frost
May 22
First fall frost
Sep 14
Growing season
112 days
Hardiness zone
6a
More local growing data for Clayton: nearby ZIP 99110 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Addy
Barney's Junction
Chewelah
Colville
Inchelium
Kettle Falls
Loon Lake
Marcus
Northport
Springdale
Valley
Climate data from the nearest NOAA station, Deer Park Ap, Wa (7.5 mi from Clayton). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.