Hourly forecast
Cornell, San Mateo air quality index (AQI⁺) forecast
Daily forecast
Cornell, San Mateo air quality index (AQI⁺) forecast
| Today | 27 | 15° 10° | 28 km/h | 77% | |
| Sat | 23 | 20° 11° | 39 km/h | 64% | |
| Sun | 16 | 18° 14° | 30 km/h | 66% |
Air pollutants
What is the current air quality near Cornell?
PM2.5 concentration currently meets the WHO annual PM2.5 guideline.
Health recommendations
Enjoy outdoor activities |
Open your windows to bring clean, fresh air indoors Get a monitor |

Real-time Cornell, San Mateo air pollution map
Pollen
What is the pollen count in Cornell today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in Cornell
Pollen
What is the pollen count in Cornell today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Low | 25% |
Source:
wetter.comHistoric air quality near Cornell
History
Historic air quality graph for Cornell
Measure your own air quality
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Most polluted locations near Cornell, San Mateo
Worldwide AQI⁺ rankingStation ranking
Real-time Cornell AQI⁺ station ranking
Get comprehensive data about air quality in Cornell, San Mateo
Learn more about global air quality
Where is the cleanest air quality in San Mateo?
- 31st Ave8
- Butano State Park12
- Park Lane12
- Parrott Drive12
- CuriOdyssey at Coyote Point13
- Edison Street13
- Occidental Avenue13
- San Mateo Park13
- Playa St San Mateo17
- Central San Mateo19
- Cornell20
- 13th Avenue21
- Iowa Drive21
- Baywood - Aragon22
- Portola Drive23
- 10th Ave and Palm24
- BV.SM Upper24
- East Poplar Avenue24
- North Claremont St24
- Sylvan Avenue24
- North Central-Ellsworth Court25
- Beresford Park26
- 113 West 40th Avenue27
- Durand Drive27
- Hayward Park on El Camino27
- North Quebec Street27
- Pinewood Court27
- Sunset Terrace27
- Leafwood Court28
- Lola28
- Mid Hillsdale Blvd28
- Noe Avenue28
- Saint Matthew's Avenue28
- West Capistrano Way28
- Monterey Trailhead29
- North Central-3rd Ave and S Grant St29
- 238 41st Avenue33
- 37th Avenue33
- Stratford Way34
- Meowchi Heaven - Park Place - San Mateo35
- Queens Lane / Lakewood Circle37











