The temperatures in Walnut Creek in October are comfortable with low of 14°C and and high up to 25°C.
The wather in Walnut Creek in October can vary between cold and nice weather days. Expect a few rainy days but usually not more than 3.
Our weather forecast can give you a great sense of what weather to expect in Walnut Creek in October 2025.
If you’re planning to visit Walnut Creek in the near future, we highly recommend that you review the 14 day weather forecast for Walnut Creek before you arrive.
Temperatures
25° / 14°
Rainy Days
2
Snowy Days
0
Dry Days
29
Rainfall
31
mm
Sun Hours
10.2
Hrs
