Cowiche, WA Weather & Growing Conditions
Overnight
38°F
Clear
Clear, with a low around 38. West wind around 1 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 38°F | Clear | 1 mph W | 1% |
| Wednesday | 47°F | Sunny | 1 to 8 mph S | 6% |
| Wednesday Night | 39°F | Chance Rain Showers | 0 to 3 mph W | 31% |
| Thursday | 50°F | Sunny | 2 to 6 mph SW | 1% |
| Thursday Night | 37°F | Partly Cloudy | 2 to 7 mph W | 12% |
| Friday | 49°F | Mostly Cloudy | 1 to 5 mph SE | 12% |
| Friday Night | 41°F | Mostly Cloudy | 0 to 5 mph NW | 9% |
| Saturday | 51°F | Partly Sunny | 0 to 6 mph NE | 4% |
| Saturday Night | 41°F | Slight Chance Rain Showers | 0 to 3 mph W | 23% |
| Sunday | 52°F | Slight Chance Rain Showers then Partly Sunny | 1 to 7 mph W | 18% |
| Sunday Night | 38°F | Mostly Cloudy | 1 to 7 mph W | 3% |
| Monday | 49°F | Partly Sunny then Slight Chance Rain Showers | 2 mph NE | 18% |
| Monday Night | 38°F | Chance Rain Showers | 1 mph NW | 27% |
| Tuesday | 50°F | Chance Rain Showers | 0 to 5 mph E | 32% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cowiche, WA
Last spring frost
Apr 8
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
7a
Explore more for Cowiche, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Yakima #2, Wa (10.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.