Add
Hourly forecast
Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast
Daily forecast
Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast
| Today | 12 |  | 12° 8° |  16 km/h |  85% |
| Mon | 36 |  | 18° 5° | 14 km/h | 60% |
| Tue | 32 | | 25° 11° | 27 km/h | 42% |
Air pollutants
What is the current air quality near Mt St Helens?
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 Mt St Helens, Cowlitz County air pollution map
Pollen
What is the pollen count in Mt St Helens today?
Index
High
 Tree Low | 25% |
 Grass High | 75% |
 Weed Moderate | 50% |
Source:
wetter.comProtect yourself from air pollution in Mt St Helens
Monitor the air you breathe
Get accurate AirVisual air quality readings and real-time insights for cleaner air. Monitors that reveal pollution sources, highlight when air purifier use is needed.
Medical grade air purifiers
Trusted worldwide, the HealthPro Series uses HyperHEPA technology. Filters ultrafine particles other air purifiers miss, delivering medical-grade protection.
Powerful, stylish air purifiers
Compact and powerful, the Atem Series combines Swiss engineering with high-performance air purification, filtering ultrafine particles with HyperHEPA technology.
Pollen
What is the pollen count in Mt St Helens today?
Index
High
Tree Low | 25% |
Grass High | 75% |
Weed Moderate | 50% |
Source:
wetter.comHistoric air quality near Mt St Helens
History
Historic air quality graph for Mt St Helens
Measure your own air quality
Get a monitor and contribute air quality data in your city.
Most polluted locations near Mt St Helens, Cowlitz County
Worldwide AQI⁺ ranking
Station ranking
Real-time Mt St Helens AQI⁺ station ranking
City ranking
Real-time USA AQI⁺ city ranking
Get comprehensive data about air quality in Mt St Helens, Cowlitz County
Download our Air Quality App
