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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 | 28 |  | 18° 8° |  12 km/h |  48% |
| Mon | 58 |  90% | 11° 5° | 24 km/h | 75% |
| Tue | 29 |  | 10° 4° | 13 km/h | 89% |
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
Moderate
 Tree None | 0% |
 Grass Low | 25% |
 Weed Moderate | 50% |
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
Moderate
Tree None | 0% |
Grass Low | 25% |
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
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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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