Worst air pollution Redding, today and tomorrow
Today (15 July): Air quality in Redding is fair. PM2.5 and NO2 are fair; AQI and O3 are medium; PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 8:00 AM (O3: 53.3/100).
Tomorrow (16 July 2026): Air quality in Redding is fair. AQI worsens to fair; PM2.5 decreases to good; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 6:00 AM (O3: 36.2/100). 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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Redding's air quality reflects the northern Sacramento Valley with vehicle emissions from I-5 and surrounding Shasta County timber operations contributing local sources. The surrounding Cascade and Coast ranges create partial topographic enclosure, while summer wildfire smoke from California and Oregon forests is an increasingly severe seasonal concern and winter wood-burning emissions concentrate under valley inversions.
Today - 15 July | Pollution peaks at 08:00
AQI:
Medium
53.3/100
PM2.5 (fine particles):
Fair
21.2/100
PM10 (coarse particles):
Good
13.1/100
NO2 (nitrogen dioxide):
Fair
21.5/100
O3 (ozone):
Medium
53.3/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
7.2/100
PM1 (ultrafine particles):
Good
15.3/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 06:00
AQI:
Fair
36.2/100
PM2.5 (fine particles):
Good
14.5/100
PM10 (coarse particles):
Good
11.9/100
NO2 (nitrogen dioxide):
Fair
21.3/100
O3 (ozone):
Fair
36.2/100
SO2 (sulfur dioxide):
Good
3.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.8/100
PM1 (ultrafine particles):
Good
8.0/100
Pollen forecast in Redding
View pollen forecastFrequently Asked Questions
Is air quality bad in Redding right now?
On 15 July 2026, overall air quality in Redding is fair. NO2 is the main pollutant at 21.5/100. Pollution peaks around 8:00 AM (O3: 53.3/100).
Will air quality be worse tomorrow in Redding?
On 16 July 2026, air quality conditions in Redding will be similar to today, with AQI forecast at fair at 36.2/100. Pollution peaks around 6:00 AM (O3: 36.2/100).
When is air pollution at its worst in Redding?
Seasonal changes shape air quality across Redding. In short, late winter and spring tend to have the cleanest conditions, once winter rains settle in, whereas wildfire smoke season from July through October is the dominant concern, sometimes overwhelming other pollution sources for days at a time. Dry summer conditions with virtually no rain mean pollution and smoke can linger for extended stretches once they arrive.
Are air quality levels in Redding 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.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 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.
For long term forecasts and maps, see the Airmine app