Weather forecast for 10 days
Portola Valley, CA

Weather forecast for the weekend

Saturday, Jun 21.

Sunny
5:47 am

8:34 pm
PDT
Sunny
68°F / 48°F
  • Wind: 14mph NW
  • Humidity: 60%
  • Precip. probability: 5%
  • Precipitation: 0"
  • UV index: 10
On Saturday, June 21, conditions will remain bright with clear skies.
Temperatures will oscillate between a pleasant 68°F at their highest and a frosty 48.2°F at their lowest.
The maximum temperature on Saturday is anticipated to reflect June's average high of 70°F.
Sunrise will be at 5:47 am and sunset at 8:34 pm; the daylight will last for 14h and 47min.

Sunday, Jun 22.

Sunny
5:47 am

8:34 pm
PDT
Sunny
73°F / 50°F
  • Wind: 11mph NNW
  • Humidity: 54%
  • Precip. probability: 4%
  • Precipitation: 0"
  • UV index: 10
On Sunday, in Portola Valley, sunshine will likely continue with scattered clouds at most.
The temperature will fluctuate from a high of a temperate 73.4°F to a low of a cool 50°F.
June's standard high of 70°F is expected to be reached during the day.
Sunrise will be at 5:47 am and sunset at 8:34 pm; the daylight will last for 14h and 47min.

Frequently asked questions

What is the weather forecast for Portola Valley for Saturday?
On Saturday, the forecast calls for abundant sunshine.
What will be the highest temperature on Saturday?
On Saturday, the highest temperature will be 68°F, while the lowest temperature will be 48.2°F.
What is the weather forecast for Portola Valley for Sunday?
On Sunday, sunny skies are in store, with excellent visibility.
What will be the maximum temperature on Sunday?
On Sunday, the highest temperature will be 73.4°F, while the lowest temperature will be 50°F.
What is the weather forecast for Portola Valley for the next ten days?
In Portola Valley, a combination of cloudy and sun-filled weather is anticipated for the next ten days.
How warm will it be in the next ten days?
The maximum temperature will vary between 62.6°F and 75.2°F, while the minimum temperature will vary between 48.2°F and 51.8°F.
What will be the warmest and the coldest days?
The warmest days will be Wednesday and next Wednesday, with a maximum of 75.2°F. With a maximum temperature of 62.6°F, Thursday and Friday will be the coldest days.

Long-term weather forecast

MonJun 16.
  • min.
  • 48°F
Clear
Clear
  • Wind: 7mph W
  • Humidity: 80%
  • UV index: 0
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:46 am 8:33 pm PDT
TueJun 17.
  • 73°F
  • 50°F
Sunny
Sunny
  • Wind: 12mph WNW
  • Humidity: 58%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:46 am 8:33 pm PDT
WedJun 18.
  • 75°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph NW
  • Humidity: 62%
  • UV index: 10
  • Precip. probability: 7%
  • Precipitation: 0"
  • 5:46 am 8:33 pm PDT
ThuJun 19.
  • 63°F
  • 50°F
Sunny
Sunny
  • Wind: 14mph WNW
  • Humidity: 70%
  • UV index: 10
  • Precip. probability: 10%
  • Precipitation: 0"
  • 5:46 am 8:34 pm PDT
FriJun 20.
  • 63°F
  • 50°F
Partly Cloudy
Partly Cloudy
  • Wind: 15mph WNW
  • Humidity: 68%
  • UV index: 10
  • Precip. probability: 11%
  • Precipitation: 0"
  • 5:46 am 8:34 pm PDT
SatJun 21.
  • 68°F
  • 48°F
Sunny
Sunny
  • Wind: 14mph NW
  • Humidity: 60%
  • UV index: 10
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:47 am 8:34 pm PDT
SunJun 22.
  • 73°F
  • 50°F
Sunny
Sunny
  • Wind: 11mph NNW
  • Humidity: 54%
  • UV index: 10
  • Precip. probability: 4%
  • Precipitation: 0"
  • 5:47 am 8:34 pm PDT
MonJun 23.
  • 70°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph NW
  • Humidity: 64%
  • UV index: 10
  • Precip. probability: 6%
  • Precipitation: 0"
  • 5:47 am 8:35 pm PDT
TueJun 24.
  • 68°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WNW
  • Humidity: 68%
  • UV index: 10
  • Precip. probability: 10%
  • Precipitation: 0"
  • 5:47 am 8:35 pm PDT
WedJun 25.
  • 75°F
  • 52°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph WNW
  • Humidity: 60%
  • UV index: 10
  • Precip. probability: 5%
  • Precipitation: 0"
  • 5:48 am 8:35 pm PDT
Weather patterns suggest that a combination of cloud-filled and clear weather is forecasted.
Rainfall is not predicted in Portola Valley in the upcoming period.
There will be a considerable variation in temperature in the next ten days. Forecast highs will fluctuate between 62.6°F and 75.2°F, while the overnight low will be nearly unchanged, as the minimum temperature will fluctuate between 48.2°F and 51.8°F.
Wednesday and next Wednesday, with the highest temperature of 75.2°F, will be the warmest days; the coldest days will be Thursday and Friday, with a maximum of 62.6°F.
Updated: Jun 17, 2025 @ 04:04:13 UTC
Published by: Weather U.S. | About Us
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