The temperatures in Rancho Cucamonga in January are quite cold with temperatures between 9°C and 19°C, warm clothes are a must.
The wather in Rancho Cucamonga in January 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 Rancho Cucamonga in January 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
19° / 9°
Rainy Days
2
Snowy Days
0
Dry Days
29
Rainfall
57
mm
Sun Hours
11.2
Hrs
