Air Quality in Los Altos, United States

Clear
29.2°C · 24.1% humidity
29.2°
Feels 29.2°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
27 10am
27
27
25 1pm
27
27
34 4pm
34
34
34 7pm
34
34
34 10pm
34
34
34 1am
34
34
34 4am
34
34
34 7am
34
34
AD 728×90

Air Quality Index Trend

48h · 1 stn

Los 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.

24.1%
Humidity
24.6 km/h
Wind NW
1008.6 hPa
Pressure
29.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
5.88 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Los Altos?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.55.88 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX29.9
Extreme
AD 300×250
Station readings (10 stations within 25 km)
5.88
Median
6.01
Average
4.1
Low
11.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: +0.6

What is the 7-day forecast for Los Altos?

07-21
29.2° 15.5°
07-22
31.9° 18.2°
07-23
28.5° 22.7°
07-24
35.3° 16.8°
07-25
27.6° 19.5°
07-26
34.8° 14.8°
07-27
31.6° 17.8°
Both models agree Avg diff: 4.8°C

Where are air quality stations near Los Altos?

27
Acterra!
5.3 km PM2.5: 6.4 µg/m³
24
N Foothhill Blvd
8.0 km PM2.5: 5.8 µg/m³
23
Berkeley-Palo Alto
8.2 km PM2.5: 5.4 µg/m³
19
Environment Education Center
9.2 km PM2.5: 4.6 µg/m³
27
JFK Middle School
10.0 km PM2.5: 6.4 µg/m³
21
Cupertino City Hall
10.6 km PM2.5: 5.0 µg/m³
78
Redwood City, San Mateo, California
13.4 km PM2.5: 24.9 µg/m³
57
Redwood City, San Mateo, California
13.4 km PM2.5: 15.0 µg/m³
24
Emerald Hills
15.6 km PM2.5: 5.7 µg/m³
56
San Jose - Jackson St, Santa Clara, California
19.8 km PM2.5: 14.5 µg/m³

What cities are near Los Altos?

25 Mountain View 23 Palo Alto 24 Sunnyvale 23 East Palo Alto 23 Menlo Park 22 Cupertino 30 Santa Clara 25 Redwood City 24 Saratoga 26 Campbell
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T20:46 UTC.