Air Quality in Palo Alto, United States

Partly Cloudy
27.1°C · 51.8% humidity
27.1°
Feels 29.2°
21
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast
34 9am
27
27
21 12pm
30
31
32 3pm
32
33
33 6pm
26
27
34 9pm
34
34
27 12am
34
34
27 3am
27
27
34 6am
34
34
AD 728×90

Air Quality Index Trend

45h · 109 stn

Palo Alto'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
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
21
5.11 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Palo Alto?

Temperature & Precipitation

PM2.5 Trend

45h · 109 stations
PM2.55.11 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (9 stations within 25 km)
5.11
Median
6.7
Average
3.88
Low
13.1
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.1

What is the 7-day forecast for Palo Alto?

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: 3.7°C

Where are air quality stations near Palo Alto?

15
Berkeley-Palo Alto
1.4 km PM2.5: 3.7 µg/m³
23
Acterra!
3.7 km PM2.5: 5.6 µg/m³
18
Redwood City, San Mateo, California
7.0 km PM2.5: 4.3 µg/m³
30
Redwood City, San Mateo, California
7.0 km PM2.5: 7.2 µg/m³
19
Emerald Hills
11.1 km PM2.5: 4.5 µg/m³
20
N Foothhill Blvd
14.7 km PM2.5: 4.7 µg/m³
16
Environment Education Center
15.9 km PM2.5: 3.8 µg/m³
25
JFK Middle School
16.7 km PM2.5: 6.1 µg/m³
18
Cupertino City Hall
17.0 km PM2.5: 4.3 µg/m³
46
San Jose - Jackson St, Santa Clara, California
24.3 km PM2.5: 11.0 µg/m³

What cities are near Palo Alto?

23 East Palo Alto 31 Menlo Park 24 Los Altos 23 Mountain View 39 Redwood City 23 Sunnyvale 31 San Carlos 28 Belmont 19 Cupertino 27 Foster City
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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 2026-09-05T19:04 UTC.