Air Quality in Los Altos, United States

Partly Cloudy
27.1°C · 51.8% humidity
27.1°
Feels 29.2°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
10 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
34
54
20 8am
24
20
22 11am
23
24
25 2pm
26
26
26 5pm
27
27
27 8pm
27
34
34 11pm
34
34
34 2am
34
34
AD 728×90

Air Quality Index Trend

45h · 105 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.

51.8%
Humidity
27.7 km/h
Wind WNW
1016.2 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
20
4.89 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Los Altos?

Temperature & Precipitation

PM2.5 Trend

45h · 105 stations
PM2.54.89 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (10 stations within 25 km)
4.89
Median
5.6
Average
2.98
Low
12.0
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +2.5

What is the 7-day forecast for Los Altos?

09-05
31.5° 17.2°
09-06
31.6° 18.6°
09-07
34.4° 15.7°
09-08
32.8° 16.2°
09-09
30.5° 18.5°
09-10
28.9° 16.2°
09-11
27.4° 19.0°
Both models agree Avg diff: 3.9°C

Where are air quality stations near Los Altos?

22
Acterra!
5.3 km PM2.5: 5.2 µg/m³
18
N Foothhill Blvd
8.0 km PM2.5: 4.2 µg/m³
12
Berkeley-Palo Alto
8.2 km PM2.5: 3.0 µg/m³
15
Environment Education Center
9.2 km PM2.5: 3.5 µg/m³
23
JFK Middle School
10.0 km PM2.5: 5.6 µg/m³
17
Cupertino City Hall
10.6 km PM2.5: 4.0 µg/m³
38
Redwood City, San Mateo, California
13.4 km PM2.5: 9.1 µg/m³
50
Redwood City, San Mateo, California
13.4 km PM2.5: 12.0 µg/m³
19
Emerald Hills
15.6 km PM2.5: 4.6 µg/m³
34
San Jose - Jackson St, Santa Clara, California
19.8 km PM2.5: 8.2 µg/m³

What cities are near Los Altos?

20 Mountain View 15 Palo Alto 20 Sunnyvale 16 East Palo Alto 26 Menlo Park 17 Cupertino 24 Santa Clara 36 Redwood City 19 Saratoga 22 Campbell
Get AQI alerts for Los Altos

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-09-05T15:52 UTC.