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Hourly forecast
Lyon Canyon, Castro Valley air quality index (AQI⁺) forecast
Daily forecast
Lyon Canyon, Castro Valley air quality index (AQI⁺) forecast
| Today | 37 |  | 20° 12° |  20 km/h |  79% |
| Tue | 32 |  | 22° 12° | 18 km/h | 73% |
| Wed | 48 | | 24° 11° | 17 km/h | 64% |
Air pollutants
What is the current air quality near Lyon Canyon?
PM2.5 concentration is currently 1.4 times the World Health Organization annual PM2.5 guideline value.
Health recommendations
 Enjoy outdoor activities |
 Open your windows to bring clean, fresh air indoors Get a monitor |
Real-time Lyon Canyon, Castro Valley air pollution map
Pollen
What is the pollen count in Lyon Canyon today?
Index
Moderate
 Tree Low | 25% |
 Grass Moderate | 50% |
 Weed Moderate | 50% |
Source:
wetter.comProtect yourself from air pollution in Lyon Canyon
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Pollen
What is the pollen count in Lyon Canyon today?
Index
Moderate
Tree Low | 25% |
Grass Moderate | 50% |
Weed Moderate | 50% |
Source:
wetter.comHistoric air quality near Lyon Canyon
History
Historic air quality graph for Lyon Canyon
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Most polluted locations near Lyon Canyon, Castro Valley
Worldwide AQI⁺ ranking
Station ranking
Real-time Lyon Canyon AQI⁺ station ranking
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