Walla Walla weather in October 2025
Expect daytime maximum temperatures of 18°C in Walla Walla, Washington State in October based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 43 mm of rainfall in the month.
- 18°C max day temperature
18
- 6 hours of sunshine per day
- 6 days with some rainfall
6
- 5°C min night temperature
5
- 11 hours of daylight per day
11
- No heat & humidity
0
- 43 mm of monthly rainfall
43
- 3 (Moderate) UV index
3
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