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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 | 26 |  90% | 11° 5° |  23 km/h |  70% |
| Tue | 19 | 90% | 9° 4° | 20 km/h | 93% |
| Wed | 36 |  | 18° 5° | 16 km/h | 79% |
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
Low
 Tree None | 0% |
 Grass Low | 25% |
 Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in Mt St Helens
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Pollen
What is the pollen count in Mt St Helens today?
Index
Low
Tree None | 0% |
Grass Low | 25% |
Weed Low | 25% |
Source:
wetter.comHistoric air quality near Mt St Helens
History
Historic air quality graph for Mt St Helens
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Most polluted locations near Mt St Helens, Cowlitz County
Worldwide AQI⁺ ranking
Station ranking
Real-time Mt St Helens AQI⁺ station ranking
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