Wallula, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wallula, a community in Walla Walla County, Washington.
Tonight
42°F
Mostly Clear
Mostly clear, with a low around 42. South wind 2 to 6 mph.
7-day forecast for Wallula
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Clear | 2 to 6 mph S | 1% |
| Wednesday | 52°F | Patchy Fog | 0 to 3 mph SW | 1% |
| Wednesday Night | 46°F | Chance Rain Showers | 1 to 14 mph S | 43% |
| Thursday | 56°F | Slight Chance Rain Showers then Mostly Sunny | 2 to 14 mph SW | 24% |
| Thursday Night | 44°F | Mostly Clear | 5 mph S | 2% |
| Friday | 55°F | Mostly Cloudy | 1 to 5 mph S | 2% |
| Friday Night | 46°F | Mostly Cloudy | 3 mph S | 2% |
| Saturday | 56°F | Mostly Sunny | 3 mph NW | 1% |
| Saturday Night | 47°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 13 mph SW | 15% |
| Sunday | 57°F | Slight Chance Rain Showers then Mostly Cloudy | 3 to 13 mph SW | 15% |
| Sunday Night | 46°F | Mostly Cloudy | 5 mph SW | 3% |
| Monday | 53°F | Partly Sunny | 3 mph NW | 5% |
| Monday Night | 45°F | Slight Chance Rain Showers | 3 mph S | 16% |
| Tuesday | 57°F | Slight Chance Rain Showers then Mostly Sunny | 3 mph S | 16% |
Forecast source: National Weather Service (api.weather.gov) for Wallula (46.085, -118.906). Updated through the day.
Growing snapshot for Wallula
Last spring frost
Apr 7
First fall frost
Oct 22
Growing season
199 days
Hardiness zone
7b
More local growing data for Wallula: nearby ZIP 99363 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ice Harbor Dam, Wa (13.8 mi from Wallula). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.