Weather forecast for 10 daysNorth Cucamonga, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 86°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSW 223°
  • Humidity: 25%
  • UV index: 6
  • Sunrise: 6:58 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
Today, on Sunday, October 18, sunny skies are in store, with excellent visibility.
The temperature is expected to vary between a maximum of a blazing 86°F and a minimum of an enjoyable 64.4°F.
Expect temperatures to match September's average maximum of 88.3°F rather than October's 79.2°F.
Sunrise will be at 6:58 am and sunset at 6:12 pm; the daylight will last for 11h and 14min.

10-day overview

Daily temperatures

Warmest period: today - tomorrow 86°C.
Coldest day: Thursday 66°C.

Chance of precipitation

Highest chance: Wednesday 65%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 86°F
  • 64°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSW 223°
  • Humidity: 25%
  • UV index: 6
  • Sunrise: 6:58 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 86°F
  • 63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSW 216°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 82°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 11mphSSW 197°
  • Humidity: 42%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 77°F
  • 59°F
Rain
Rain
  • Precip. probability: 65%
  • Precipitation: 0"
  • Wind: 12mphS 191°
  • Humidity: 58%
  • UV index: 6
  • Sunrise: 7:00 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 55°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 63%
  • Precipitation: 0.55"
  • Wind: 9mphSW 215°
  • Humidity: 72%
  • UV index: 5
  • Sunrise: 7:01 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 57°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0.16"
  • Wind: 8mphWNW 282°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:02 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 79°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 8mphN 353°
  • Humidity: 40%
  • UV index: 5
  • Sunrise: 7:03 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphW 265°
  • Humidity: 43%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 10mphWSW 251°
  • Humidity: 49%
  • UV index: 5
  • Sunrise: 7:04 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 72°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphWSW 257°
  • Humidity: 49%
  • UV index: 5
  • Sunrise: 7:05 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
Mixed conditions are forecasted for the coming ten days, and a mix of mostly clear, overcast, wet and turbulent weather is forecasted.
With a probability of 63%, rainfall is predicted only for Thursday. The precipitation will be moderate at 0.55".
The temperature will vary considerably in the upcoming period. Highs will range from 66.2°F to 86°F, while the forecast minimum temperature falls between 55.4°F and 64.4°F.
With a maximum temperature of 86°F, Sunday and Monday will be the hottest days in North Cucamonga, California; with the highest temperature of 66.2°F, Thursday will be the coldest day.
Updated: Oct 18, 2026 @ 09:50:14 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, conditions will remain bright with clear skies.

Today, the highest temperature will be 86°F, while the lowest temperature will be 64.4°F.
The highest temperature will be slightly warmer than the average maximum of 79.2°F in October. The lowest temperature will be also a few degrees higher than the average low of 57.6°F.

On Sunday, in North Cucamonga, sunrise will be at 6:58 am and sunset at 6:12 pm (PDT).

In North Cucamonga, the length of the day today will be 11h and 14min.