Portola Valley, CA Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Portola Valley, CA in one place.
Partly sunny. High near 71, with temperatures falling to around 67 in the afternoon. Southwest wind 5 to 9 mph.
Local Weather Overview
This forecast page for Portola Valley, CA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 1, 2026 11:10 PM PDT.
The active forecast window currently covers Jun 2 to Jun 8, 2026 for Portola Valley, CA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 2 to Jun 8, 2026
- Latest sync
- Jun 1, 2026 11:10 PM PDT
- Forecast office
- MTR
- Source
- NOAA / NWS
Daily Outlook
This Week in Portola Valley
Wednesday looks like the warmest upcoming period in Portola Valley at 77 degrees F.
Saturday Night is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for Saturday at about 8 to 12 mph WSW.
The forecast from Jun 2 through Jun 8 stays mostly dry.
Forecast Details
- Last updated
- Jun 1, 2026 11:10 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- MTR
- Radar station
- KMUX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 53. South southwest wind around 8 mph.
Mostly sunny, with a high near 77. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 55. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunny, with a high near 75.
Mostly clear, with a low around 53.
Sunny, with a high near 72.
Mostly clear, with a low around 53.
Sunny, with a high near 68.
Mostly clear, with a low around 51.
Sunny, with a high near 70.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Partly Sunny
|
71°F |
5 to 9 mph
SW
|
|
Tuesday Night
Jun 2
|
Mostly Cloudy
|
53°F |
8 mph
SSW
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
77°F |
7 to 10 mph
SW
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
55°F |
5 to 10 mph
SW
|
|
Thursday
Jun 4
|
Sunny
|
75°F |
5 to 8 mph
SW
|
|
Thursday Night
Jun 4
|
Mostly Clear
|
53°F |
8 mph
SSW
|
|
Friday
Jun 5
|
Sunny
|
72°F |
6 to 9 mph
SSW
|
|
Friday Night
Jun 5
|
Mostly Clear
|
53°F |
10 mph
SW
|
|
Saturday
Jun 6
|
Sunny
|
68°F |
8 to 12 mph
WSW
|
|
Saturday Night
Jun 6
|
Mostly Clear
|
51°F |
5 to 12 mph
SW
|
|
Sunday
Jun 7
|
Sunny
|
70°F |
5 to 9 mph
SW
|
|
Sunday Night
Jun 7
|
Mostly Clear
|
52°F |
6 to 9 mph
WSW
|
|
Monday
Jun 8
|
Mostly Sunny
|
70°F |
6 to 9 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Portola Valley.
