Worst air pollution Hillyard - Spokane, today and tomorrow
Today (15 July): Air quality in Hillyard is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (O3: 52.9/100).
Tomorrow (16 July 2026): Air quality in Hillyard is medium. All pollutants stay as today. Pollution peaks around 4:00 AM (O3: 51.8/100). 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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Spokane's Hillyard air quality reflects the historic industrial Northeast Spokane neighbourhood, with vehicle traffic on the surrounding Market Street corridor and the former Burlington Northern rail yards contributing elevated diesel PM2.5. The flat terrain allows reasonable dispersal, while the industrial legacy and the freight rail character maintain moderate to above-average Spokane metropolitan readings and summer wildfire smoke is the primary seasonal air quality concern throughout the year.
Today - 15 July | Pollution peaks at 07:00
AQI:
Medium
52.9/100
PM2.5 (fine particles):
Good
10.2/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
52.9/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
7.5/100
PM1 (ultrafine particles):
Good
12.5/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 04:00
AQI:
Medium
51.8/100
PM2.5 (fine particles):
Good
8.7/100
PM10 (coarse particles):
Good
3.0/100
NO2 (nitrogen dioxide):
Good
0/100
O3 (ozone):
Medium
51.8/100
SO2 (sulfur dioxide):
Good
0/100
CO (carbon monoxide):
Good
0/100
HCHO (formaldehyde):
Good
11.5/100
PM1 (ultrafine particles):
Good
10.6/100
Other Landmarks in Spokane
Frequently Asked Questions
Is air quality bad in Hillyard right now?
On 15 July 2026, overall air quality in Hillyard is medium. AQI is the main air quality indicator at 52.9/100. Pollution peaks around 7:00 AM (O3: 52.9/100).
Will air quality be worse tomorrow in Hillyard?
On 16 July 2026, air quality conditions in Hillyard will be similar to today, with AQI forecast at medium at 51.8/100. Pollution peaks around 4:00 AM (O3: 51.8/100).
When is air pollution at its worst in Hillyard?
Hillyard follows Spokane's typical seasonal air quality pattern, as spring is often the freshest stretch, sandwiched between winter rain and summer fire season; by contrast, August and September wildfire smoke can dominate the season, occasionally driving particulate levels sharply higher for several days. Winter temperature inversions can briefly trap wood-smoke in low-lying valleys, but these episodes are usually short-lived.
Are air quality levels in Hillyard 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