Weather forecast for 10 daysSunnyvale, CA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 75°F
- 52°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 11mphN 351°
- Humidity: 59%
- UV index: 5
- Sunrise: 7:19 am PDT
- Sunset: 6:27 pm PDT
- details ▼
On Sunday, in Sunnyvale, sunny and dry conditions are anticipated.
The temperature variation is forecasted to range from a maximum of a warm 75.2°F to a minimum of a crisp 51.8°F.
The high temperature is expected to match October's standard maximum of 71.8°F.
Sunrise will be at 7:19 am and sunset at 6:27 pm; the daylight will last for 11h and 8min.
The temperature variation is forecasted to range from a maximum of a warm 75.2°F to a minimum of a crisp 51.8°F.
The high temperature is expected to match October's standard maximum of 71.8°F.
Sunrise will be at 7:19 am and sunset at 6:27 pm; the daylight will last for 11h and 8min.
10-day overview
Daily temperatures
Warmest day: today 75°C.
Coldest day: Wednesday 64°C.
Coldest day: Wednesday 64°C.
Chance of precipitation
Highest chance: Wednesday 67%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 75°F
- 52°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 11mphN 351°
- Humidity: 59%
- UV index: 5
- Sunrise: 7:19 am PDT
- Sunset: 6:27 pm PDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 52°F
Mostly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 11mphNW 325°
- Humidity: 61%
- UV index: 5
- Sunrise: 7:20 am PDT
- Sunset: 6:25 pm PDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 54°F
Mostly Cloudy
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 7mphNE 36°
- Humidity: 62%
- UV index: 4
- Sunrise: 7:21 am PDT
- Sunset: 6:24 pm PDT
- details ▼
- Wednesday
- Oct 21, 2026
- 64°F
- 54°F
Showers
- Precip. probability: 67%
- Precipitation: 0.16"
- Wind: 6mphENE 59°
- Humidity: 77%
- UV index: 2
- Sunrise: 7:22 am PDT
- Sunset: 6:23 pm PDT
- details ▼
- Thursday
- Oct 22, 2026
- 66°F
- 54°F
AM Showers
- Precip. probability: 35%
- Precipitation: 0.2"
- Wind: 9mphNNW 336°
- Humidity: 79%
- UV index: 4
- Sunrise: 7:23 am PDT
- Sunset: 6:21 pm PDT
- details ▼
- Friday
- Oct 23, 2026
- 70°F
- 50°F
Partly Cloudy
- Precip. probability: 23%
- Precipitation: 0.04"
- Wind: 9mphN 3°
- Humidity: 73%
- UV index: 5
- Sunrise: 7:24 am PDT
- Sunset: 6:20 pm PDT
- details ▼
- Saturday
- Oct 24, 2026
- 70°F
- 50°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 8mphNNE 18°
- Humidity: 63%
- UV index: 5
- Sunrise: 7:25 am PDT
- Sunset: 6:19 pm PDT
- details ▼
- Sunday
- Oct 25, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 9mphN 9°
- Humidity: 64%
- UV index: 4
- Sunrise: 7:26 am PDT
- Sunset: 6:18 pm PDT
- details ▼
- Monday
- Oct 26, 2026
- 66°F
- 48°F
Partly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 9mphNNE 14°
- Humidity: 61%
- UV index: 4
- Sunrise: 7:27 am PDT
- Sunset: 6:17 pm PDT
- details ▼
- Tuesday
- Oct 27, 2026
- 68°F
- 48°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 9mphNNE 15°
- Humidity: 59%
- UV index: 4
- Sunrise: 7:28 am PDT
- Sunset: 6:15 pm PDT
- details ▼
During the ten-day period, primarily cloud-filled and occasionally rain-filled and sun-filled weather is expected.
Rainfall is predicted for Wednesday through Friday.
In the upcoming days, the highest temperature will range between 64.4°F and 75.2°F, while the nighttime low will be mostly stable, as the overnight low will fall between 48.2°F and 53.6°F.
The warmest day is today, with a maximum temperature of 75.2°F; with the highest temperature of 64.4°F, Wednesday will be the coldest day.
Rainfall is predicted for Wednesday through Friday.
In the upcoming days, the highest temperature will range between 64.4°F and 75.2°F, while the nighttime low will be mostly stable, as the overnight low will fall between 48.2°F and 53.6°F.
The warmest day is today, with a maximum temperature of 75.2°F; with the highest temperature of 64.4°F, Wednesday will be the coldest day.
Updated: Oct 18, 2026 @ 08:32:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, sunshine is expected with little to no cloud cover.
Today, the highest temperature will be 75.2°F, while the lowest temperature will be 51.8°F.
The maximum temperature will be in line with the average highest temperature of 71.8°F in October. Today, the lowest temperature will be also in line with the average low temperature.
The maximum temperature will be in line with the average highest temperature of 71.8°F in October. Today, the lowest temperature 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, the length of the day today will be 11h and 8min.
