Air Quality in Los Altos, United States
Windy
21.7°C · 44.3% humidity
21.7°
Feels 21.7°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Los Altos's air quality — share it
AQI Forecast
25
2pm
27
27
27
5pm
34
34
54
8pm
54
54
54
11pm
54
54
54
2am
54
34
34
5am
34
34
34
8am
27
27
27
11am
27
27
Air Quality Index Trend
46h · 3 stnLos Altos's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Los Altos is 1.3× the WHO annual guideline of 5 µg/m³.
44.3%
Humidity
63.1 km/h
Wind NW
1017.4 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.5 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Los Altos?
Temperature & Precipitation
PM2.5 Trend
46h · 3 stationsPM2.56.5 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
What is the 7-day forecast for Los Altos?
05-29
22.7° 12.7°
05-30
22.0° 15.0°
05-31
28.4° 18.6°
06-01
28.1° 14.0°
06-02
23.5° 13.9°
06-03
28.3° 10.5°
06-04
28.6° 11.7°
Both models agree
Avg diff: 3.4°C
Where are air quality stations near Los Altos?
15
Acterra!
14
N Foothhill Blvd
12
Berkeley-Palo Alto
13
Environment Education Center
17
JFK Middle School
14
Cupertino City Hall
52
Redwood City, San Mateo, California
24
Redwood City, San Mateo, California
13
Emerald Hills
33
San Jose - Jackson St, Santa Clara, California
What cities are near Los Altos?
Get AQI alerts for Los Altos
Notify me when air quality reaches:
Free · No account · Unsubscribe any time
Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:18 UTC.