Zillah, WA Weather & Growing Conditions
Today
50°F
Mostly Sunny
Mostly sunny. High near 50, with temperatures falling to around 44 in the afternoon. Southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 50°F | Mostly Sunny | 3 mph SE | 1% |
| Tonight | 37°F | Chance Rain Showers | 2 mph SE | 29% |
| Thursday | 55°F | Patchy Fog then Sunny | 1 to 5 mph SW | 1% |
| Thursday Night | 35°F | Partly Cloudy | 1 mph N | 5% |
| Friday | 53°F | Chance Rain Showers | 2 mph S | 26% |
| Friday Night | 38°F | Chance Rain Showers | 2 mph SW | 26% |
| Saturday | 56°F | Mostly Sunny | 2 mph NE | 1% |
| Saturday Night | 40°F | Mostly Cloudy | 0 to 9 mph NW | 1% |
| Sunday | 57°F | Partly Sunny | 2 to 9 mph SW | 2% |
| Sunday Night | 36°F | Mostly Cloudy | 2 mph NW | 3% |
| Monday | 54°F | Partly Sunny | 1 mph NE | 7% |
| Monday Night | 37°F | Partly Cloudy then Slight Chance Rain Showers | 1 mph N | 20% |
| Tuesday | 56°F | Slight Chance Rain Showers | 2 mph SW | 23% |
| Tuesday Night | 40°F | Slight Chance Rain Showers | 2 mph S | 23% |
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 (1.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.