Air Quality in Palo Alto, United States

Clear
24.9°C · 36.1% humidity
24.9°
Feels 24.9°
68
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
54 5pm
54
54
68 8pm
64
61
59 11pm
58
57
56 2am
55
55
55 5am
54
54
54 8am
54
34
34 11am
34
54
54 2pm
54
54
AD 728×90

Air Quality Index Trend

46h · 102 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 1.4× the WHO 24-hour guideline of 15 µg/m³.

36.1%
Humidity
20.6 km/h
Wind WNW
1010.9 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
68
20.3 µg/m³
PM10
56
66.15 µg/m³
050100150200300500

What is the weather forecast for Palo Alto?

Temperature & Precipitation

PM2.5 Trend

46h · 102 stations
PM2.520.3 µg/m³ ×1.4 WHO
Moderate
PM1066.15 µg/m³
Moderate
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Palo Alto?

08-03
28.5° 15.9°
08-04
28.0° 18.9°
08-05
28.2° 15.2°
08-06
29.4° 16.2°
08-07
25.6° 19.1°
08-08
28.2° 15.9°
08-09
29.5° 16.1°
Both models agree Avg diff: 2.8°C

Where are air quality stations near Palo Alto?

28
Berkeley-Palo Alto
1.4 km PM2.5: 6.7 µg/m³
35
Acterra!
3.7 km PM2.5: 8.5 µg/m³
34
Redwood City, San Mateo, California
7.0 km PM2.5: 8.2 µg/m³
30
Emerald Hills
11.1 km PM2.5: 7.1 µg/m³
33
N Foothhill Blvd
14.7 km PM2.5: 7.9 µg/m³
31
Environment Education Center
15.9 km PM2.5: 7.5 µg/m³
45
JFK Middle School
16.7 km PM2.5: 10.8 µg/m³
32
Cupertino City Hall
17.0 km PM2.5: 7.7 µg/m³
40
Cristo Rey Jesuit High School
26.7 km PM2.5: 9.6 µg/m³
32
Belle Air School
30.7 km PM2.5: 7.6 µg/m³

What cities are near Palo Alto?

68 East Palo Alto 68 Menlo Park 63 Los Altos 64 Mountain View 63 Redwood City 64 Sunnyvale 64 San Carlos 64 Belmont 64 Cupertino 64 Foster City
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-08T03:56 UTC.