Weather forecast for 10 days
Rancho Cucamonga, CA

Tomorrow, on Sunday, December 22, the sky will also be clouded.
Temperature fluctuations between a pleasant 69.8°F (21°C) and a fresh 50°F (10°C) are anticipated.
It will be warmer, and the highest temperature tomorrow will be more in line with November's average maximum of 70.7°F (21.5°C) than December's of 61.7°F (16.5°C).
Sunrise will be at 6:51 am and sunset at 4:47 pm; tomorrow's daylight will last for 9h and 56min.

For the next ten days, primarily cloudy and occasionally rainy weather is expected.
With a 64% probability, rainfall is expected only on Tuesday. Predicted precipitation will be minimal at 0.12" (3mm).
Temperature differences will be substantial in the upcoming period. The maximum temperature will range between 60.8°F (16°C) and 73.4°F (23°C), while the lowest nightly temperature will be almost identical, as the minimum temperature will range between 46.4°F (8°C) and 51.8°F (11°C).
The warmest days in Rancho Cucamonga will be Monday and next Monday, with a maximum of 73.4°F (23°C); the coldest day will be Tuesday, with a maximum of 60.8°F (16°C).

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With an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 45.3°F (7.4°C), December is the coldest month in Rancho Cucamonga.