Air Quality in Palo Alto, 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

AQI Forecast
25 2pm
25
27
27 5pm
34
34
34 8pm
54
54
54 11pm
54
54
34 2am
34
34
34 5am
27
27
27 8am
27
27
27 11am
27
27
AD 728×90

Air Quality Index Trend

46h · 3 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. Current PM2.5 concentration in Palo Alto 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▲
27
6.5 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Palo Alto?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.56.5 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250

What is the 7-day forecast for Palo Alto?

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 Palo Alto?

12
Berkeley-Palo Alto
1.4 km PM2.5: 2.8 µg/m³
15
Acterra!
3.7 km PM2.5: 3.6 µg/m³
52
Redwood City, San Mateo, California
7.0 km PM2.5: 12.6 µg/m³
24
Redwood City, San Mateo, California
7.0 km PM2.5: 5.8 µg/m³
13
Emerald Hills
11.1 km PM2.5: 3.2 µg/m³
14
N Foothhill Blvd
14.7 km PM2.5: 3.3 µg/m³
13
Environment Education Center
15.9 km PM2.5: 3.1 µg/m³
17
JFK Middle School
16.7 km PM2.5: 4.0 µg/m³
14
Cupertino City Hall
17.0 km PM2.5: 3.3 µg/m³
33
San Jose - Jackson St, Santa Clara, California
24.3 km PM2.5: 7.9 µg/m³

What cities are near Palo Alto?

27 East Palo Alto 27 Menlo Park 27 Los Altos 26 Mountain View 31 Redwood City 26 Sunnyvale 31 San Carlos 31 Belmont 26 Cupertino 43 Foster City
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T00:26 UTC.