What is the air quality in Palo Alto today?

The current Air Quality Index (AQI) in Palo Alto is 23 (Good). PM2.5 concentration is 5.51 µg/m³.

What is the temperature in Palo Alto right now?

The current temperature in Palo Alto is 29.2°C (feels like 29.2°C). Humidity is 24.1% and wind speed is 24.6 km/h.

Is it safe to go outside in Palo Alto?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 29.9 (Extreme).

Air Quality in Palo Alto, United States

Clear

29.2°C · 24.1% humidity

29.2°

Feels 29.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

8 stations

Nearby Monitoring Stations

AQI Forecast

27 10am

23 1pm

30 4pm

33 7pm

53 10pm

54 1am

34 4am

34 7am

Air Quality Index Trend

48h · 1 stn

View full history →

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.

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▲

5.51 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Palo Alto?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station

PM2.55.51 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX29.9

Extreme

Station readings (8 stations within 25 km)

5.51

Median

6.28

Average

4.58

Low

11.0

High

PM2.5 µg/m³ · Model: 7.35 · Bias: +1.8

What is the 7-day forecast for Palo Alto?

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: 5.6°C

Where are air quality stations near Palo Alto?

Berkeley-Palo Alto

1.4 km PM2.5: 5.4 µg/m³

Acterra!

3.7 km PM2.5: 6.4 µg/m³

Redwood City, San Mateo, California

7.0 km PM2.5: 24.9 µg/m³

Redwood City, San Mateo, California

7.0 km PM2.5: 15.0 µg/m³

Emerald Hills

11.1 km PM2.5: 5.7 µg/m³

N Foothhill Blvd

14.7 km PM2.5: 5.8 µg/m³

Environment Education Center

15.9 km PM2.5: 4.6 µg/m³

JFK Middle School

16.7 km PM2.5: 6.4 µg/m³

Cupertino City Hall

17.0 km PM2.5: 5.0 µg/m³

San Jose - Jackson St, Santa Clara, California

24.3 km PM2.5: 14.5 µg/m³

What cities are near Palo Alto?

23 East Palo Alto 23 Menlo Park 25 Los Altos 25 Mountain View 25 Redwood City 24 Sunnyvale 26 San Carlos 27 Belmont 22 Cupertino 29 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 2026-07-21T20:55 UTC.