Cowiche, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cowiche, a community in Yakima County, Washington.
Today
50°F
Partly Sunny
Partly sunny. High near 50, with temperatures falling to around 46 in the afternoon. Southeast wind 2 to 6 mph.
7-day forecast for Cowiche
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Partly Sunny | 2 to 6 mph SE | 4% |
| Tonight | 37°F | Chance Rain Showers | 2 mph W | 30% |
| Thursday | 55°F | Mostly Sunny | 2 to 6 mph SW | 0% |
| Thursday Night | 35°F | Mostly Cloudy | 1 to 5 mph W | 3% |
| Friday | 51°F | Chance Rain Showers | 2 mph SE | 29% |
| Friday Night | 39°F | Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 29% |
| Saturday | 55°F | Partly Sunny | 0 to 3 mph E | 2% |
| Saturday Night | 40°F | Slight Chance Rain Showers | 0 to 3 mph SW | 22% |
| Sunday | 56°F | Slight Chance Rain Showers then Partly Sunny | 1 to 6 mph W | 22% |
| Sunday Night | 36°F | Mostly Cloudy | 2 to 7 mph NW | 1% |
| Monday | 53°F | Partly Sunny | 2 mph NE | 8% |
| Monday Night | 37°F | Chance Rain Showers | 1 mph N | 28% |
| Tuesday | 54°F | Chance Rain Showers | 2 mph SE | 32% |
| Tuesday Night | 40°F | Chance Rain Showers | 2 mph NW | 32% |
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 Nov 4, 2026.