The temperatures in Rancho Cucamonga in October are comfortable with low of 17°C and and high up to 26°C.
You can expect a few rainy days in Rancho Cucamonga during October, but usually the weather is comfortable in October.
Our weather forecast can give you a great sense of what weather to expect in Rancho Cucamonga in October 2025.
If you’re planning to visit Rancho Cucamonga in the near future, we highly recommend that you review the 14 day weather forecast for Rancho Cucamonga before you arrive.
Temperatures
26° / 17°
Rainy Days
1
Snowy Days
0
Dry Days
30
Rainfall
10
mm
Sun Hours
11.7
Hrs
