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Hourly forecast
Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast
Daily forecast
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Mt St Helens, Cowlitz County air quality index (AQI⁺) forecast
| Today | 7 |  | 7° 4° |  13 km/h |  91% |
| Tue | 9 |  80% | 5° 3° | 21 km/h | 99% |
| Wed | 7 |  | 4° 2° | 8 km/h | 99% |
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 None | 0% |
 Weed Low | 25% |
Source:
wetter.comProtect yourself from air pollution in Mt St Helens
Protect yourself from air pollution in Mt St Helens
Air Purifiers
Face Masks
Air Quality Monitors
Pollen
What is the pollen count in Mt St Helens today?
Index
Low
Tree None | 0% |
Grass None | 0% |
Weed Low | 25% |
Source:
wetter.comHistoric air quality near Mt St Helens
History
Historic air quality graph for Mt St Helens
0 AQI⁺ US
Good
23:00–00:00 Oct 25 Local time
AQI⁺ US
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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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