Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality in Portola Valley
Air quality index (AQI) and PM2.5 air pollution in Portola Valley
4.4K people follow this city
Portola Valley Air Quality Map
Real-time Portola Valley air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Portola Valley today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Portola Valley?
| Weather | Broken clouds |
| Temperature | 57.2°F |
| Humidity | 78% |
| Wind | 8.3 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Indio, California | 119 |
| 2 | Palm Desert, California | 118 |
| 3 | Coachella, California | 79 |
| 4 | Corpus Christi, Texas | 71 |
| 5 | Casa Grande, Arizona | 65 |
| 6 | Pahrump, Nevada | 63 |
| 7 | Jacksonville, Florida | 60 |
| 8 | Denver, Colorado | 59 |
| 9 | Newell, North Carolina | 58 |
| 10 | Ocala, Florida | 58 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Portola Valley aqi ranking
Real-time Portola Valley air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 14 Arastradero | 12 |
| 2 | 4139 Alpine Road | 10 |
| 3 | Ladera - Lucero and Mimosa | 10 |
| 4 | Stonegate Road | 10 |
| 5 | 9 Valley Oak Street | 9 |
| 6 | Buck Meadow Drive | 9 |
| 7 | San Francisquito Creek Road | 9 |
| 8 | 3249 Alpine Road | 8 |
| 9 | Alhambra Court | 8 |
| 10 | LSAC Building 950 | 8 |
(local time)
SEE WORLD AQI RANKING
US AQI
8
live AQI index
Good
Overview
What is the current air quality in Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 8 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1.9µg/m³ | |
✓
PM2.5 concentration in Portola Valley air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Portola Valley?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Portola Valley air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 13 AQI US | | 60.8° 50° |  11.2 mp/h |
| Tuesday, Apr 23 | Good 14 AQI US | | 60.8° 48.2° | 8.9 mp/h |
| Wednesday, Apr 24 | Good 10 AQI US | | 57.2° 50° | 8.9 mp/h |
| Today | Good 8 AQI US | | 57.2° 50° | 8.9 mp/h |
| Friday, Apr 26 | Good 12 AQI US |  20% | 57.2° 48.2° | 15.7 mp/h |
| Saturday, Apr 27 | Good 14 AQI US | | 59° 46.4° | 11.2 mp/h |
| Sunday, Apr 28 | Good 16 AQI US | 20% | 60.8° 46.4° | 11.2 mp/h |
| Monday, Apr 29 | Good 17 AQI US |  | 64.4° 44.6° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 17 AQI US |  | 64.4° 46.4° | 8.9 mp/h |
| Wednesday, May 1 | Good 16 AQI US | | 60.8° 48.2° | 8.9 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Portola Valley air quality data attribution
26Contributors
- 26 Anonymous contributors
26 stations
26 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
- Alpine Hills 0
- Bay Laurel 0
- Alpine Road 4
- Granada Court 4
- Lower Sandstone 4
- Pescadero 5
- Experimental Facilities Dept Shops EFD 6
- Hayfields Road 6
- Vista Verde Way 6
- 10 Alhambra Court 7
- Sausal Drive 7
- 3249 Alpine Road 8
- Alhambra Court 8
- LSAC Building 950 8
- Loop Road 8
- Los Trancos Road 8
- Millennium farm 8
- Pomponio Court 8
- Sandstone Street 8
- 9 Valley Oak Street 9
- Buck Meadow Drive 9
- San Francisquito Creek Road 9
- 4139 Alpine Road 10
- Ladera - Lucero and Mimosa 10
- Stonegate Road 10
- 14 Arastradero 12
AQI US, Metric