The temperatures in Rancho Cucamonga in February are quite cold with temperatures between 48°F and 66°F, warm clothes are a must.
The wather in Rancho Cucamonga in February 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 February 2026.
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
66° / 48°
Rainy Days
2
Snowy Days
0
Dry Days
26
Rainfall
2.48
in
Sun Hours
11.2
Hrs
