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San Jose, CA Air Quality Index



Realtime Air Quality Data
Realtime Location: San Jose, CA
Issue Date: 07/18/26 8:00 PM PDT

Current Air Quality Index

Good 45



Realtime AQI - Pollutant Details
Type: Particle Pollution (2.5 microns)
Index: Good
AQI Value: 45		 Good

Type: Ozone
Index: Good
AQI Value: 28
Good

Last Update:Sat, 18 Jul 2026 07:45:03 PST
Realtime Air Quality Data
Realtime Location:Saratoga-Weather.org - PurpleAir sensor More...
Issue Date: Sat, 18-Jul-2026 9:03pm PDT

Current Air Quality Index

Good 25

0-50 Good
51-100 Moderate
101-150 Unhealthy for Sensitive Groups
151-200 Unhealthy
201-300 Very Unhealthy
301-500 Hazardous


Air Quality Forecast
Forecast Location: San Jose, CA
Forecast Agency: Bay Area Air District
Two Day Forecast
Day One Forecast Day Two Forecast
Date: 07/18/2026
Type: Particle Pollution (2.5 microns)
Index: Good
AQI Value: 50

Good
Date: 07/19/2026
Type: Particle Pollution (2.5 microns)
Index: Good
AQI Value: 50

Good
Last Update:Sat, 18 Jul 2026 07:45:04 PST
Script courtesy of  Michael Holden of Relay Weather. Data courtesy of Airnow.gov





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