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 Foster City
Air quality index (AQI) and PM2.5 air pollution in Foster City
27.6K people follow this city
Foster City Air Quality Map
Real-time Foster City air pollution map
AIR QUALITY DATA CONTRIBUTORS
Anonymous contributor
See all
Pollen
What is the pollen count in Foster City today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | Low | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Foster City?
| Weather | Clear sky |
| Temperature | 50°F |
| Humidity | 85% |
| Wind | 9.2 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 88 |
| 2 | Corpus Christi, Texas | 82 |
| 3 | Deschutes River Woods, Oregon | 77 |
| 4 | Canton, Ohio | 74 |
| 5 | Pahrump, Nevada | 73 |
| 6 | Maricopa, Arizona | 71 |
| 7 | Boerne, Texas | 70 |
| 8 | Claremont, California | 68 |
| 9 | Harrisburg, Pennsylvania | 68 |
| 10 | Palm Desert, California | 68 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Foster City aqi ranking
Real-time Foster City air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Beach Park Boulevard | 28 |
| 2 | Sea Spray Lane | 28 |
| 3 | Niantic Drive | 26 |
| 4 | Ketch Park | 23 |
| 5 | Shad Park | 22 |
(local time)
SEE WORLD AQI RANKING
US AQI
27
live AQI index
Good
Overview
What is the current air quality in Foster City?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 27 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 4.9µg/m³ | |
✓
PM2.5 concentration in Foster City air currently meets the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Foster City?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Foster City air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Friday, May 17 | Good 8 AQI US |  | 66.2° 50° |  8.9 mp/h |
| Saturday, May 18 | Good 24 AQI US | | 64.4° 48.2° | 8.9 mp/h |
| Sunday, May 19 | Good 26 AQI US | | 66.2° 48.2° | 8.9 mp/h |
| Today | Good 27 AQI US | | 66.2° 48.2° | 8.9 mp/h |
| Tuesday, May 21 | Good 36 AQI US | | 69.8° 50° | 8.9 mp/h |
| Wednesday, May 22 | Good 44 AQI US | | 66.2° 50° | 8.9 mp/h |
| Thursday, May 23 | Good 31 AQI US |  | 60.8° 48.2° | 13.4 mp/h |
| Friday, May 24 | Good 21 AQI US | | 60.8° 48.2° | 11.2 mp/h |
| Saturday, May 25 | Good 42 AQI US | | 59° 48.2° | 11.2 mp/h |
| Sunday, May 26 | Good 17 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?
Foster City air quality data attribution
5Contributors
- 5 Anonymous contributors
5 stations
5 Anonymous Contributors
1 Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in Foster City?
AQI US, Metric