Normally the average weather in Rancho Cucamonga through July is 22. Throughout the month you should see a high of 30 with low average temperatures being 16 degrees celsius. We have put some more info below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 22 |
| High Temperature | 30 |
| Low Temperature | 16 |
| Sunshine Per Day | 10 |
Useful Links: Rancho Cucamonga Weather: Average Weather & Yearly Climate