Weather forecast for 10 daysSunnyvale, CA

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 75°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphNNW 348°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
Tomorrow, sunshine will likely continue with scattered clouds at most.
Temperatures are expected to peak at a warm 75.2°F and drop to a minimum of a cool 51.8°F.
The high is forecasted to coincide with October's normal of 71.8°F.
Sunrise will be at 7:19 am and sunset at 6:27 pm; tomorrow's daylight will last for 11h and 8min.

10-day overview

Daily temperatures

Warmest day: tomorrow 75°C.
Minimum temperature: 66°C.

Chance of precipitation

Highest chance: Wednesday 48%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 55°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 1mphNNW 327°
  • Humidity: 72%
  • UV index: 0
  • Sunrise: 7:18 am PDT
  • Sunset: 6:28 pm PDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 75°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 11mphNNW 348°
  • Humidity: 59%
  • UV index: 5
  • Sunrise: 7:19 am PDT
  • Sunset: 6:27 pm PDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 52°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 11mphNW 323°
  • Humidity: 62%
  • UV index: 5
  • Sunrise: 7:20 am PDT
  • Sunset: 6:25 pm PDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 70°F
  • 54°F
AM Clouds / PM Sun
AM Clouds / PM Sun
  • Precip. probability: 22%
  • Precipitation: 0.08"
  • Wind: 8mphNE 36°
  • Humidity: 62%
  • UV index: 4
  • Sunrise: 7:21 am PDT
  • Sunset: 6:24 pm PDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 66°F
  • 54°F
Showers
Showers
  • Precip. probability: 48%
  • Precipitation: 0.12"
  • Wind: 6mphNNE 32°
  • Humidity: 74%
  • UV index: 3
  • Sunrise: 7:22 am PDT
  • Sunset: 6:23 pm PDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 66°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 9mphNNW 340°
  • Humidity: 76%
  • UV index: 4
  • Sunrise: 7:23 am PDT
  • Sunset: 6:21 pm PDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 11%
  • Precipitation: 0"
  • Wind: 9mphNNW 344°
  • Humidity: 70%
  • UV index: 5
  • Sunrise: 7:24 am PDT
  • Sunset: 6:20 pm PDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 9mphNNE 15°
  • Humidity: 65%
  • UV index: 5
  • Sunrise: 7:25 am PDT
  • Sunset: 6:19 pm PDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 70°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 16%
  • Precipitation: 0"
  • Wind: 9mphN 10°
  • Humidity: 63%
  • UV index: 4
  • Sunrise: 7:26 am PDT
  • Sunset: 6:18 pm PDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 68°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 14%
  • Precipitation: 0"
  • Wind: 9mphNNE 17°
  • Humidity: 53%
  • UV index: 4
  • Sunrise: 7:27 am PDT
  • Sunset: 6:17 pm PDT
  • ▼
Over the next ten days, a mix of primarily gloomy and occasionally sunny and showery weather is forecasted.
Rainfall is forecasted for Tuesday and Wednesday.
In the coming days, the maximum temperature will range between 66.2°F and 75.2°F, while the lowest temperature will be between 48.2°F and 55.4°F.
With the highest temperature of 75.2°F, Sunday will be the warmest day; the coldest days will be Monday, Wednesday and Thursday, with a maximum of 66.2°F.
Updated: Oct 18, 2026 @ 05:53:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, sunny conditions are expected to continue.

Tomorrow, the highest temperature will be 75.2°F, while the lowest temperature will be 51.8°F.
The highest temperature will be in line with the average maximum of 71.8°F in October. The lowest temperature tomorrow will be also in line with the average low temperature.

On Sunday, in Sunnyvale, sunrise will be at 7:19 am and sunset at 6:27 pm (PDT).

In Sunnyvale, California, tomorrow, there will be 11h and 8min of daylight.