Zillah, WA Weather & Growing Conditions
Overnight
37°F
Patchy Fog
Patchy fog. Mostly clear, with a low around 37. Wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 37°F | Patchy Fog | 0 mph | 1% |
| Wednesday | 53°F | Patchy Fog then Sunny | 0 to 5 mph SE | 2% |
| Wednesday Night | 37°F | Chance Rain Showers | 2 mph E | 38% |
| Thursday | 57°F | Patchy Fog then Sunny | 2 mph SW | 5% |
| Thursday Night | 36°F | Partly Cloudy | 2 mph N | 2% |
| Friday | 55°F | Mostly Cloudy | 0 to 3 mph SE | 2% |
| Friday Night | 38°F | Mostly Cloudy | 2 mph E | 6% |
| Saturday | 57°F | Mostly Sunny | 2 mph NE | 1% |
| Saturday Night | 40°F | Mostly Cloudy | 0 to 3 mph SW | 3% |
| Sunday | 59°F | Partly Sunny | 2 to 8 mph SW | 3% |
| Sunday Night | 37°F | Mostly Cloudy | 0 to 3 mph NW | 2% |
| Monday | 54°F | Partly Sunny | 2 mph NW | 10% |
| Monday Night | 37°F | Slight Chance Rain Showers | 1 mph N | 17% |
| Tuesday | 58°F | Slight Chance Rain Showers | 0 to 3 mph SE | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Zillah, WA
Last spring frost
May 4
First fall frost
Oct 10
Growing season
155 days
Hardiness zone
7a
Explore more for Zillah, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Moxee City 10 E, Wa (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.