Wallula, WA Weather & Growing Conditions
Overnight
37°F
Patchy Fog
Patchy fog after 4am. Mostly clear, with a low around 37. Southeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 37°F | Patchy Fog | 5 mph SE | 1% |
| Wednesday | 53°F | Patchy Fog then Sunny | 0 to 3 mph S | 1% |
| Wednesday Night | 42°F | Chance Rain Showers | 1 to 13 mph S | 45% |
| Thursday | 59°F | Chance Rain Showers then Mostly Sunny | 3 to 15 mph SW | 26% |
| Thursday Night | 39°F | Mostly Clear | 6 mph S | 2% |
| Friday | 57°F | Mostly Cloudy | 5 mph S | 2% |
| Friday Night | 42°F | Mostly Cloudy | 3 mph S | 2% |
| Saturday | 59°F | Mostly Sunny | 1 to 5 mph NW | 1% |
| Saturday Night | 43°F | Mostly Cloudy then Slight Chance Rain Showers | 2 to 12 mph SW | 15% |
| Sunday | 59°F | Slight Chance Rain Showers then Partly Sunny | 3 to 12 mph SW | 15% |
| Sunday Night | 42°F | Mostly Cloudy | 2 to 6 mph SW | 3% |
| Monday | 55°F | Partly Sunny | 3 mph NW | 5% |
| Monday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph S | 16% |
| Tuesday | 60°F | Slight Chance Rain Showers then Mostly Sunny | 5 mph S | 16% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wallula, WA
Last spring frost
Apr 7
First fall frost
Oct 22
Growing season
199 days
Hardiness zone
7b
Explore more for Wallula, WA: full frost dates · planting calendar · Washington frost dates
Climate data from the nearest NOAA station, Ice Harbor Dam, Wa (13.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.