Worst air pollution Weir and Johnson Campground - Cedaredge, today and tomorrow
Today (20 September): Air quality in Weir and Johnson Campground is moderate. AQI and O3 are moderate; PM2.5 is fair; PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 40.0/100).
Tomorrow (21 September 2026): Air quality in Weir and Johnson Campground is moderate. NO2 increases to fair; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 50.6/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Weir and Johnson Campground, modest traffic volumes mean local air quality leans more on farmland dust and seasonal burning than on vehicle emissions. Trees and green space nearby provide a partial buffer, catching particulate matter before it spreads further. Actual daily readings vary with weather, time of day, and short-term local activity.
Today - 20 September | Pollution peaks at 10:00
AQI:
Moderate
40.0/100
PM2.5 (fine particles):
Fair
38.7/100
PM10 (coarse particles):
Good
16.8/100
NO2 (nitrogen dioxide):
Good
10.3/100
O3 (ozone):
Moderate
40.0/100
SO2 (sulfur dioxide):
Good
1.1/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.0/100
PM1 (ultrafine particles):
Good
5.3/100
Levels show the poorest local air quality during the day
Tomorrow - 21 September | Pollution peaks at 08:00
AQI:
Moderate
50.6/100
PM2.5 (fine particles):
Fair
37.2/100
PM10 (coarse particles):
Good
16.2/100
NO2 (nitrogen dioxide):
Fair
22.6/100
O3 (ozone):
Moderate
50.6/100
SO2 (sulfur dioxide):
Good
1.3/100
CO (carbon monoxide):
Good
0.6/100
HCHO (formaldehyde):
Good
3.4/100
PM1 (ultrafine particles):
Good
4.4/100
Other Landmarks in Cedaredge
Frequently Asked Questions
Is air quality bad in Weir and Johnson Campground right now?
On 20 September 2026, overall air quality in Weir and Johnson Campground is moderate. AQI is the main air quality indicator at 40.0/100. Pollution peaks around 10:00 AM (O3: 40.0/100).
Will air quality be worse tomorrow in Weir and Johnson Campground?
On 21 September 2026, air quality conditions in Weir and Johnson Campground will be similar to today, with AQI forecast at moderate at 50.6/100. Pollution peaks around 8:00 AM (O3: 50.6/100).
When is air pollution at its worst in Weir and Johnson Campground?
December through February tends to be calm here, with wind speeds averaging around 8 km/h and temperatures near -6°C -- conditions cool and still enough for particulate matter and smoke to settle near the ground instead of dispersing. Temperatures climb to around 18°C on average from June to August, warm enough for intense sun and heat to fuel ground-level ozone formation.
Are air quality levels in Weir and Johnson Campground based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
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Data provided by Airmine — Last update: 20 September 2026 at 14:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.
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