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Weather in Rancho Cucamonga, California for July 2025

Your guide to Rancho Cucamonga weather in July - trends and predictions

    Temperatures

  • Until now, July 2025 in Rancho Cucamonga is cooler than usual, with temperatures averaging 30.1 °F, this is -3.9 °F below the typical seasonal average.

  • In general, the average temperature in Rancho Cucamonga at the beginning of July is 33.9 °F. As the month progressed, temperatures tended to slightly decrease, reaching an average of 33.4 °F by the end of July.

    • Rain 🌧️

  • Precipitation in Rancho Cucamonga during July is a rare event, with an average of fewer than 2 rainy days.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
31
Dry days
Average rainy days
0
Rainy days
Average snowy days
0
Snow days
Average temperatures
35°/20°
Temperatures
Average wind speed
16 km/h
Avg max wind
Average humidity
31 %
Avg humidity

Rancho Cucamonga Weather July

Move between months or click on a day
June
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
35°
2
Sunny
34°
3
Sunny
34°
4
Sunny
34°
5
Sunny
35°
6
Sunny
33°
7
Sunny
32°
8
Sunny
34°
9
Sunny
35°
10
Sunny
36°
11
Sunny
36°
12
Sunny
32°
13
Sunny
34°
14
Sunny
34°
15
Sunny
35°
16
Sunny
33°
17
Sunny
33°
18
Sunny
34°
19
Sunny
36°
20
Sunny
36°
21
Sunny
33°
22
Overcast
33°
23
Overcast
33°
24
Sunny
35°
25
Sunny
35°
26
Sunny
33°
27
Sunny
33°
28
Sunny
33°
29
Sunny
34°
30
Sunny
34°
31
Sunny
32°

Temperatures trend during July in Rancho Cucamonga

See the weather trend as well as the moving average line

July weather in Rancho Cucamonga day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
Jul. 1 Sunny
Sunny
 35° /18° 0 mm 8
Jul. 2 Sunny
Sunny
 34° /18° 0 mm 9
Jul. 3 Sunny
Sunny
 34° /19° 0 mm 9
Jul. 4 Sunny
Sunny
 34° /19° 0 mm 8
Jul. 5 Sunny
Sunny
 35° /19° 0 mm 8
Jul. 6 Sunny
Sunny
 33° /19° 0 mm 8
Jul. 7 Sunny
Sunny
 32° /18° 0 mm 8
Jul. 8 Sunny
Sunny
 34° /18° 0 mm 8
Jul. 9 Sunny
Sunny
 35° /19° 0 mm 8
Jul. 10 Sunny
Sunny
 36° /20° 0 mm 9
Jul. 11 Sunny
Sunny
 36° /20° 0 mm 9
Jul. 12 Sunny
Sunny
 32° /19° 0 mm 8
Jul. 13 Sunny
Sunny
 34° /19° 0 mm 8
Jul. 14 Sunny
Sunny
 34° /19° 0 mm 8
Jul. 15 Sunny
Sunny
 35° /20° 0 mm 8
Jul. 16 Sunny
Sunny
 33° /19° 0 mm 8
Jul. 17 Sunny
Sunny
 33° /20° 0 mm 8
Jul. 18 Sunny
Sunny
 34° /20° 0.2 mm 8
Jul. 19 Sunny
Sunny
 36° /20° 0 mm 9
Jul. 20 Sunny
Sunny
 36° /21° 0 mm 9
Jul. 21 Sunny
Sunny
 33° /20° 0 mm 9
Jul. 22 Overcast
Overcast
 33° /20° 0 mm 8
Jul. 23 Overcast
Overcast
 33° /20° 0.4 mm 8
Jul. 24 Sunny
Sunny
 35° /20° 0.1 mm 9
Jul. 25 Sunny
Sunny
 35° /20° 0 mm 8
Jul. 26 Sunny
Sunny
 33° /19° 0 mm 8
Jul. 27 Sunny
Sunny
 33° /19° 0 mm 8
Jul. 28 Sunny
Sunny
 33° /18° 0 mm 8
Jul. 29 Sunny
Sunny
 34° /19° 0 mm 8
Jul. 30 Sunny
Sunny
 34° /19° 0 mm 8
Jul. 31 Sunny
Sunny
 32° /19° 0 mm 3
Next
Important Notice
Our weather forecast for Rancho Cucamonga in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Rancho Cucamonga forecast closer to your planned date for the most up-to-date weather information.
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Rancho Cucamonga in July - FAQ

What are the expected maximum and minimum temperatures in Rancho Cucamonga during July?
Expect warm days with temperatures around 35°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.
How much rainfall should be expected in Rancho Cucamonga during July?
Rainfall in Rancho Cucamonga during July is rare to nonexistent, with the total expected rainfall being less than 10 mm and approximately 0 days seeing any precipitation. Planning without the concern for rain is generally straightforward during this very dry period.
What are the typical wind conditions in Rancho Cucamonga during July?
The average wind speed in Rancho Cucamonga during July is 16 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in Rancho Cucamonga

Explore the daily rainfall trends and prepare for Rancho Cucamongas July weather 💧

UV exposure in Rancho Cucamonga during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️

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Location coordinates Where is Rancho Cucamonga?

Get accurate weather forecasts for Rancho Cucamonga, located at latitude 34.106 and longitude -117.593. Stay updated with localized weather information tailored for Rancho Cucamonga.

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