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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
Anonymous contributor
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Pollen
What is the pollen count in Portola Valley today?
 | Index | Moderate | |
 | Tree pollen | Moderate | |
 | Grass pollen | Moderate | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Portola Valley?
| Weather | Few clouds |
| Temperature | 68°F |
| Humidity | 65% |
| Wind | 1 mp/h |
| Pressure | 30 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  San Antonio, Texas | 97 |
| 2 | Baytown, Texas | 81 |
| 3 | Boerne, Texas | 81 |
| 4 | New Braunfels, Texas | 81 |
| 5 | Pahrump, Nevada | 80 |
| 6 | Fontana, California | 79 |
| 7 | San Fernando, California | 78 |
| 8 | San Bernardino, California | 76 |
| 9 | La Crescenta-Montrose, California | 74 |
| 10 | Rancho Cucamonga, California | 73 |
(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 | 60 |
| 2 | 4139 Alpine Road | 54 |
| 3 | 14 Arastradero | 33 |
| 4 | Millennium farm | 31 |
| 5 | LSAC Building 950 | 30 |
| 6 | Ladera - Lucero and Mimosa | 29 |
| 7 | 9 Valley Oak Street | 28 |
| 8 | San Francisquito Creek Road | 28 |
| 9 | Alhambra Court | 27 |
| 10 | Buck Meadow Drive | 27 |
(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 |
|---|---|---|---|---|
| Wednesday, May 29 | Good 28 AQI US | | 82.4° 50° |  8.9 mp/h |
| Thursday, May 30 | Good 31 AQI US | | 78.8° 48.2° | 6.7 mp/h |
| Friday, May 31 | Good 26 AQI US | | 68° 48.2° | 11.2 mp/h |
| Today | Good 26 AQI US | | 68° 48.2° | 11.2 mp/h |
| Sunday, Jun 2 | Good 30 AQI US |  | 62.6° 51.8° | 8.9 mp/h |
| Monday, Jun 3 | Good 20 AQI US | | 60.8° 50° | 8.9 mp/h |
| Tuesday, Jun 4 | Good 34 AQI US |  | 71.6° 50° | 11.2 mp/h |
| Wednesday, Jun 5 | Moderate 60 AQI US  | | 75.2° 53.6° | 6.7 mp/h |
| Thursday, Jun 6 | Good 41 AQI US | | 66.2° 50° | 6.7 mp/h |
| Friday, Jun 7 | Good 35 AQI US | | 66.2° 50° | 6.7 mp/h |
| Saturday, Jun 8 | Good 28 AQI US | | 64.4° 50° | 6.7 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
27Contributors
- 27 Anonymous contributors
27 stations
27 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Portola Valley?
- Coalmine View 0
- Georgia Lane 15
- Ash Lane 19
- Hayfields Road 20
- Alpine Road 21
- Alpine Hills 22
- Pescadero 22
- Bay Laurel 23
- Pomponio Court 24
- 10 Alhambra Court 25
- 3249 Alpine Road 26
- Experimental Facilities Dept Shops EFD 26
- Loop Road 26
- Alhambra Court 27
- Buck Meadow Drive 27
- Granada Court 27
- Los Trancos Road 27
- Sandstone Street 27
- Sausal Drive 27
- 9 Valley Oak Street 28
- San Francisquito Creek Road 28
- Ladera - Lucero and Mimosa 29
- LSAC Building 950 30
- Millennium farm 31
- 14 Arastradero 33
- 4139 Alpine Road 54
- Lower Sandstone 60
AQI US, Metric