Harman US

Walla Walla, OR Weather & Growing Conditions

Today
51°F
Patchy Fog then Sunny
Patchy fog before 10am. Sunny. High near 51, with temperatures falling to around 47 in the afternoon. Southwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 51°F Patchy Fog then Sunny 2 mph SW 1%
Tonight 40°F Mostly Cloudy then Chance Rain Showers 2 to 7 mph SE 42%
Thursday 55°F Chance Rain Showers then Mostly Sunny 3 to 10 mph S 42%
Thursday Night 35°F Mostly Clear 3 to 7 mph SE 0%
Friday 56°F Partly Sunny 1 to 6 mph S 4%
Friday Night 41°F Mostly Cloudy 1 to 5 mph SE 7%
Saturday 64°F Mostly Sunny 1 to 5 mph W 1%
Saturday Night 43°F Mostly Cloudy then Slight Chance Rain Showers 1 to 7 mph S 23%
Sunday 59°F Slight Chance Rain Showers 2 to 8 mph S 23%
Sunday Night 40°F Mostly Cloudy 2 to 6 mph SE 7%
Monday 54°F Mostly Cloudy 2 mph S 6%
Monday Night 39°F Mostly Cloudy then Slight Chance Rain Showers 0 to 3 mph SE 18%
Tuesday 61°F Slight Chance Rain Showers 3 mph S 22%
Tuesday Night 43°F Slight Chance Rain Showers 1 to 5 mph SE 22%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Walla Walla, OR

Last spring frost
Mar 27
First fall frost
Oct 31
Growing season
219 days
Hardiness zone
7a

Explore more for Walla Walla, OR: full frost dates · planting calendar · Oregon frost dates

Climate data from the nearest NOAA station, Walla Walla Rgnl Ap, Wa (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.