Weather forecast for 10 daysRancho San Diego, CA

Weather forecast for the weekend

Saturday Oct 17, 2026

  • 86°F
  • 61°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphE 79°
  • Humidity: 25%
  • UV index: 4
  • Sunrise: 6:53 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
On Saturday, in Rancho San Diego, cloudy weather is anticipated.
The temperature will fluctuate from a high of a humid 86°F to a low of a breezy 60.8°F.
A high of 86°F is expected, which resembles September's climate average of 82.6°F more than October's 77.2°F.
Sunrise was at 6:53 am and sunset will be at 6:12 pm; the daylight will last for 11h and 19min.

Sunday Oct 18, 2026

  • 86°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphW 279°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 6:54 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
Tomorrow, on Sunday, sunny skies are also in store, with excellent visibility.
The temperature is anticipated to vary between a maximum of a tropical 86°F and a minimum of a breezy 60.8°F.
It will feel hotter than usual, as the temperature reflects September's normal high of 82.6°F, not October's.
Sunrise will be at 6:54 am and sunset at 6:11 pm; tomorrow's daylight will last for 11h and 17min.

10-day overview

Daily temperatures

Warmest period: today - tomorrow 86°C.
Coldest day: Thursday 72°C.

Chance of precipitation

Highest chance: Thursday 67%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • 86°F
  • 61°F
Cloudy
Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphE 79°
  • Humidity: 25%
  • UV index: 4
  • Sunrise: 6:53 am PDT
  • Sunset: 6:12 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 86°F
  • 61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphW 279°
  • Humidity: 31%
  • UV index: 6
  • Sunrise: 6:54 am PDT
  • Sunset: 6:11 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 84°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 11mphWSW 246°
  • Humidity: 49%
  • UV index: 6
  • Sunrise: 6:55 am PDT
  • Sunset: 6:10 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 81°F
  • 59°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphWSW 247°
  • Humidity: 59%
  • UV index: 6
  • Sunrise: 6:55 am PDT
  • Sunset: 6:09 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 79°F
  • 61°F
Showers
Showers
  • Precip. probability: 37%
  • Precipitation: 0.43"
  • Wind: 12mphSSW 209°
  • Humidity: 63%
  • UV index: 6
  • Sunrise: 6:56 am PDT
  • Sunset: 6:07 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 72°F
  • 55°F
Thunderstorms
Thunderstorms
  • Precip. probability: 67%
  • Precipitation: 0.31"
  • Wind: 11mphSW 218°
  • Humidity: 71%
  • UV index: 5
  • Sunrise: 6:57 am PDT
  • Sunset: 6:06 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 54°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 11mphW 264°
  • Humidity: 66%
  • UV index: 6
  • Sunrise: 6:58 am PDT
  • Sunset: 6:05 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 77°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 9mphWNW 282°
  • Humidity: 56%
  • UV index: 6
  • Sunrise: 6:59 am PDT
  • Sunset: 6:04 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 77°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 10mphWSW 243°
  • Humidity: 54%
  • UV index: 5
  • Sunrise: 6:59 am PDT
  • Sunset: 6:03 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 75°F
  • 55°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 11mphWSW 245°
  • Humidity: 58%
  • UV index: 5
  • Sunrise: 7:00 am PDT
  • Sunset: 6:02 pm PDT
  • ▼
The next ten days will bring unstable conditions, and a mix of clear, cloudy, showery and unstable weather is forecasted.
Rainfall is anticipated on Wednesday and Thursday.
Expect a substantial fluctuation in daytime highs in the upcoming period. Maximum temperatures are forecasted between 71.6°F and 86°F, while the low temperature range extends from 53.6°F to 60.8°F.
The hottest days in Rancho San Diego will be Saturday and Sunday, with a maximum of 86°F; Thursday will be the coldest day, with the highest temperature of 71.6°F.
Updated: Oct 17, 2026 @ 15:40:32 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Saturday, cloudy weather is expected.

Today, the highest temperature will be 86°F, while the lowest temperature will be 60.8°F.
Today, the maximum temperature will be a few degrees higher than the average highest temperature in October. The lowest temperature today will be in line with the average low temperature.

On Saturday, in Rancho San Diego, sunrise was at 6:53 am and sunset will be at 6:12 pm (PDT).

Today, the daylight will last for 11h and 19min.

Tomorrow, in Rancho San Diego, sunny skies are in store, with excellent visibility.

Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 60.8°F.
The maximum temperature tomorrow will be moderately higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 59°F.

On Sunday, in Rancho San Diego, sunrise will be at 6:54 am and sunset at 6:11 pm (PDT).

In Rancho San Diego, the length of the day tomorrow will be 11h and 17min.