Walla Walla, WA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Walla Walla, a city in Walla Walla County, Washington.
Tonight
33°F
Patchy Fog
Patchy fog. Partly cloudy. Low around 33, with temperatures rising to around 35 overnight. Southeast wind 1 to 5 mph.
7-day forecast for Walla Walla
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 33°F | Patchy Fog | 1 to 5 mph SE | 1% |
| Wednesday | 53°F | Patchy Fog then Sunny | 2 mph S | 1% |
| Wednesday Night | 39°F | Mostly Cloudy then Chance Rain Showers | 1 to 6 mph SE | 45% |
| Thursday | 56°F | Chance Rain Showers then Mostly Sunny | 2 to 9 mph SW | 45% |
| Thursday Night | 38°F | Partly Cloudy | 2 to 6 mph SE | 6% |
| Friday | 58°F | Mostly Cloudy | 1 to 5 mph S | 8% |
| Friday Night | 42°F | Mostly Cloudy | 1 to 6 mph SE | 4% |
| Saturday | 63°F | Partly Sunny | 3 mph S | 1% |
| Saturday Night | 44°F | Mostly Cloudy then Slight Chance Rain Showers | 1 to 6 mph S | 22% |
| Sunday | 61°F | Chance Rain Showers | 2 to 7 mph S | 27% |
| Sunday Night | 41°F | Mostly Cloudy | 5 mph S | 12% |
| Monday | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 2 mph SW | 16% |
| Monday Night | 41°F | Slight Chance Rain Showers | 2 mph S | 20% |
| Tuesday | 61°F | Chance Rain Showers | 2 mph S | 28% |
Forecast source: National Weather Service (api.weather.gov) for Walla Walla (46.067, -118.337). Updated through the day.
Growing snapshot for Walla Walla
Last spring frost
Mar 27
First fall frost
Oct 31
Growing season
219 days
Hardiness zone
7a
More local growing data for Walla Walla: nearby ZIP 99362 weather · frost dates · planting calendar · Washington frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Walla Walla Rgnl Ap, Wa (1.4 mi from Walla Walla). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.