Cowiche, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowiche, a community in Yakima County, Washington.
Tonight
53°F
Mostly Clear
Mostly clear. Low around 53, with temperatures rising to around 55 overnight. Northwest wind 6 to 9 mph.
7-day forecast for Cowiche
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 53°F | Mostly Clear | 6 to 9 mph NW | 0% |
| Saturday | 77°F | Sunny | 2 to 8 mph S | 0% |
| Saturday Night | 54°F | Mostly Clear | 2 to 6 mph W | 0% |
| Sunday | 78°F | Sunny | 7 mph SE | 0% |
| Sunday Night | 55°F | Mostly Clear | 2 to 7 mph NW | 0% |
| Monday | 79°F | Mostly Sunny | 2 to 9 mph NE | 0% |
| Monday Night | 53°F | Partly Cloudy | 5 to 12 mph NW | 0% |
| Tuesday | 76°F | Mostly Sunny | 3 to 14 mph NE | 0% |
| Tuesday Night | 51°F | Partly Cloudy | 6 to 14 mph NW | 0% |
| Wednesday | 71°F | Mostly Sunny | 2 to 14 mph NW | 1% |
| Wednesday Night | 49°F | Mostly Cloudy | 6 to 10 mph NW | 1% |
| Thursday | 68°F | Partly Sunny | 3 to 8 mph E | 6% |
| Thursday Night | 49°F | Mostly Cloudy | 8 mph NW | 9% |
| Friday | 65°F | Mostly Sunny | 9 mph NW | 6% |
Forecast source: National Weather Service (api.weather.gov) for Cowiche (46.672, -120.712). Updated through the day.
Growing snapshot for Cowiche
Last spring frost
Apr 8
First fall frost
Oct 23
Growing season
196 days
Hardiness zone
7a
More local growing data for Cowiche: nearby ZIP 98923 weather · frost dates · planting calendar · Washington frost dates
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Climate data from the nearest NOAA station, Yakima #2, Wa (9 mi from Cowiche). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.