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
27.8K people follow this city
Foster City Air Quality Map
Real-time Foster City air pollution map
AIR QUALITY DATA CONTRIBUTORS
7 Contributors
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 | 55.4°F |
| Humidity | 85% |
| Wind | 25.3 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Mecca, California | 92 |
| 2 | Palm Desert, California | 87 |
| 3 | Corpus Christi, Texas | 80 |
| 4 | Campo, California | 76 |
| 5 | Pahrump, Nevada | 74 |
| 6 | Claremont, California | 72 |
| 7 | Rancho Cucamonga, California | 72 |
| 8 | Glendora, California | 69 |
| 9 | Oak Hills, California | 68 |
| 10 | Yucaipa, 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 | 1998 Beach Park Boulevard | 36 |
| 2 | Sea Spray Lane | 5 |
| 3 | Mariners Point, Foster City | 4 |
| 4 | Niantic Drive | 2 |
| 5 | Shad Park | 1 |
| 6 | Beach Park Boulevard | 0 |
| 7 | Ketch Park | 0 |
(local time)
SEE WORLD AQI RANKING
US AQI
4
live AQI index
Good
Overview
What is the current air quality in Foster City?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 4 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 0.7µg/m³ | |
| PM10 | 0.8µg/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 |
|---|---|---|---|---|
| Thursday, May 30 | Good 36 AQI US |  | 73.4° 50° |  8.9 mp/h |
| Friday, May 31 | Good 29 AQI US | | 64.4° 50° | 17.9 mp/h |
| Saturday, Jun 1 | Good 12 AQI US |  | 66.2° 53.6° | 13.4 mp/h |
| Today | Good 4 AQI US | | 66.2° 53.6° | 13.4 mp/h |
| Monday, Jun 3 | Good 18 AQI US | | 64.4° 51.8° | 8.9 mp/h |
| Tuesday, Jun 4 | Good 32 AQI US | | 75.2° 51.8° | 8.9 mp/h |
| Wednesday, Jun 5 | Moderate 58 AQI US  | | 75.2° 53.6° | 6.7 mp/h |
| Thursday, Jun 6 | Good 45 AQI US |  | 68° 51.8° | 8.9 mp/h |
| Friday, Jun 7 | Good 42 AQI US | | 73.4° 50° | 8.9 mp/h |
| Saturday, Jun 8 | Good 34 AQI US | | 66.2° 51.8° | 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
7Contributors
- AirGradient
1 station
Corporate Contributor
- 6 Anonymous contributors
6 stations
6 Anonymous Contributors
2 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Foster City?
AQI US, Metric