Get a monitor and contributor to air quality data in your city.
Air Quality 
Air Monitors
Air Purifiers
For Business
News
Support
Air quality near Lake & 21st Avenue, San Francisco
Air quality index (AQI) and PM2.5 air pollution near Lake & 21st Avenue, San Francisco
754 people follow this station
Air Quality Map
Real-time Lake & 21st Avenue air pollution map
AIR QUALITY DATA CONTRIBUTORS
Find out more about contributors and data sourcesPollen
What is the pollen count in Lake & 21st Avenue today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather near Lake & 21st Avenue, San Francisco?
| Weather | Broken clouds |
| Temperature | 53.6°F |
| Humidity | 81% |
| Wind | 17 mp/h |
| Pressure | 30.1 Hg |
live aqi city ranking
Real-time USA city ranking
| # | city | US AQI |
|---|---|---|
| 1 | Palm Desert, California | 158 |
| 2 | Indio, California | 119 |
| 3 | Casa Grande, Arizona | 65 |
| 4 | Gilbert, Arizona | 65 |
| 5 | Baton Rouge, Louisiana | 64 |
| 6 | Newell, North Carolina | 63 |
| 7 | Pahrump, Nevada | 63 |
| 8 | Corpus Christi, Texas | 62 |
| 9 | Ocala, Florida | 62 |
| 10 | Jacksonville, Florida | 59 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live aqi station ranking
Real-time San Francisco air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | 23rd Street & 3rd Street | 36 |
| 2 | Shore View Ave | 33 |
| 3 | Downey Street | 30 |
| 4 | Mission District 2 | 26 |
| 5 | Potrero Hill 2 | 26 |
| 6 | House Guerrero | 23 |
| 7 | Baker Beach | 22 |
| 8 | 3398 Baker Street | 21 |
| 9 | 4031 21st Street | 21 |
| 10 | Chenery St | 21 |
(local time)
SEE WORLD AQI RANKING
US AQI
8
live AQI index
Good
Overview
What is the current air quality near Lake & 21st Avenue, San Francisco?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Good | 8 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 1.9µg/m³ | |
Health Recommendations
What is the current air quality near Lake & 21st Avenue, San Francisco?
 | Enjoy outdoor activities |
 | Open your windows to bring clean, fresh air indoors GET A MONITOR |
Forecast
Lake & 21st Avenue, San Francisco air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Monday, Apr 22 | Good 15 AQI US | |||
| Tuesday, Apr 23 | Good 14 AQI US | |||
| Wednesday, Apr 24 | Good 11 AQI US | |||
| Today | Good 8 AQI US | | 57.2° 51.8° |  17.9 mp/h |
| Friday, Apr 26 | Good 9 AQI US |  | 57.2° 51.8° | 20.1 mp/h |
| Saturday, Apr 27 | Good 12 AQI US | | 57.2° 48.2° | 17.9 mp/h |
| Sunday, Apr 28 | Good 14 AQI US |  | 59° 50° | 20.1 mp/h |
| Monday, Apr 29 | Good 16 AQI US | | 60.8° 48.2° | 11.2 mp/h |
| Tuesday, Apr 30 | Good 16 AQI US | | 59° 51.8° | 15.7 mp/h |
| Wednesday, May 1 | Good 15 AQI US | | 59° 51.8° | 13.4 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
Lake & 21st Avenue air quality data attribution
Contributor
Anonymous Contributor
Data source
Data validated and calibrated by IQAirWhere is the cleanest air quality in San Francisco?
No locations are available.
AQI US, Metric