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Air quality in Portola Valley
Air quality index (AQI) and PM2.5 air pollution in Portola Valley
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Portola Valley Air Quality Map
Real-time Portola Valley air pollution map
AIR QUALITY DATA CONTRIBUTORS
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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 | Clear sky |
| Temperature | 57.2°F |
| Humidity | 67% |
| Wind | 3.6 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Corpus Christi, Texas | 105 |
| 2 | Lewisville, Texas | 105 |
| 3 | Fort Worth, Texas | 102 |
| 4 | Georgetown, Texas | 95 |
| 5 | Denton, Texas | 94 |
| 6 | Midlothian, Texas | 94 |
| 7 | New Braunfels, Texas | 94 |
| 8 | Dallas, Texas | 91 |
| 9 | Round Rock, Texas | 91 |
| 10 | Austin, Texas | 89 |
(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 | Lower Sandstone | 47 |
| 2 | Antonio Court | 43 |
| 3 | Pescadero | 37 |
| 4 | LSAC Building 950 | 34 |
| 5 | Loop Road | 33 |
| 6 | San Francisquito Creek Road | 31 |
| 7 | Experimental Facilities Dept Shops EFD | 30 |
| 8 | Los Trancos Road | 30 |
| 9 | 10 Alhambra Court | 29 |
| 10 | Granada Court | 29 |
(local time)
SEE WORLD AQI RANKING
US AQI
26
live AQI index
Good
Overview
What is the current air quality in Portola Valley?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 26 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.8µg/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 |
|---|---|---|---|---|
| Saturday, May 18 | Good 21 AQI US |  | 69.8° 46.4° |  8.9 mp/h |
| Sunday, May 19 | Good 25 AQI US |  | 71.6° 46.4° | 6.7 mp/h |
| Monday, May 20 | Good 27 AQI US | | 77° 48.2° | 8.9 mp/h |
| Today | Good 26 AQI US | | 64.4° 48.2° | 8.9 mp/h |
| Wednesday, May 22 | Good 31 AQI US |  | 62.6° 46.4° | 11.2 mp/h |
| Thursday, May 23 | Good 30 AQI US |  20% | 57.2° 46.4° | 11.2 mp/h |
| Friday, May 24 | Good 22 AQI US | 20% | 57.2° 46.4° | 8.9 mp/h |
| Saturday, May 25 | Good 16 AQI US | | 64.4° 46.4° | 8.9 mp/h |
| Sunday, May 26 | Good 48 AQI US | | 68° 46.4° | 6.7 mp/h |
| Monday, May 27 | Moderate 67 AQI US  | | 62.6° 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
29Contributors
- 29 Anonymous contributors
29 stations
29 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
- Georgia Lane 15
- Bay Laurel 19
- 4139 Alpine Road 22
- Thomas Fogarty Winery 22
- Buck Meadow Drive 23
- Coalmine View 23
- Hayfields Road 23
- Millennium farm 25
- Pomponio Court 25
- Sausal Drive 25
- 9 Valley Oak Street 26
- Ladera - Lucero and Mimosa 26
- Sandstone Street 26
- Vista Verde Way 26
- 14 Arastradero 27
- Alpine Hills 27
- Ash Lane 27
- Alhambra Court 28
- Alpine Road 28
- 10 Alhambra Court 29
- Granada Court 29
- Experimental Facilities Dept Shops EFD 30
- Los Trancos Road 30
- San Francisquito Creek Road 31
- Loop Road 33
- LSAC Building 950 34
- Pescadero 37
- Antonio Court 43
- Lower Sandstone 47
AQI US, Metric