What is the air quality in Palo Alto today?

The current Air Quality Index (AQI) in Palo Alto is 16 (Good). PM2.5 concentration is 3.91 µg/m³.

What is the temperature in Palo Alto right now?

The current temperature in Palo Alto is 22.6°C (feels like 22.6°C). Humidity is 31.3% and wind speed is 17.8 km/h.

Is it safe to go outside in Palo Alto?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Palo Alto, United States

Clear

22.6°C · 31.3% humidity

22.6°

Feels 22.6°

Good

Air quality is satisfactory. Enjoy outdoor activities.

11 stations

Nearby Monitoring Stations

AQI Forecast

— 10am

—

— 1pm

—

— 4pm

—

— 7pm

—

— 10pm

—

— 1am

—

— 4am

—

— 7am

—

Air Quality Index Trend

46h · 114 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.

31.3%

Humidity

17.8 km/h

Wind WNW

1018.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

3.91 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Palo Alto?

Temperature & Precipitation

PM2.5 Trend

46h · 114 stations

PM2.53.91 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (11 stations within 25 km)

3.91

Median

4.59

Average

3.11

Low

10.8

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +1.9

What is the 7-day forecast for Palo Alto?

10-20

25.6° 15.7°

10-21

24.9° 16.0°

10-22

26.4° 16.5°

10-23

23.0° 17.1°

10-24

23.1° 15.2°

10-25

23.9° 14.3°

1.13 mm

10-26

22.5° 15.3°

Both models agree Avg diff: 4.5°C

Where are air quality stations near Palo Alto?

Berkeley-Palo Alto

1.4 km PM2.5: 3.4 µg/m³

Acterra!

3.7 km PM2.5: 4.1 µg/m³

Redwood City, San Mateo, California

7.0 km PM2.5: 5.8 µg/m³

Redwood City, San Mateo, California

7.0 km PM2.5: 10.8 µg/m³

Emerald Hills

11.1 km PM2.5: 3.8 µg/m³

N Foothhill Blvd

14.7 km PM2.5: 4.0 µg/m³

Environment Education Center

15.9 km PM2.5: 3.1 µg/m³

JFK Middle School

16.7 km PM2.5: 4.9 µg/m³

Cupertino City Hall

17.0 km PM2.5: 3.5 µg/m³

San Jose - Jackson St, Santa Clara, California

24.3 km PM2.5: 3.4 µg/m³

What cities are near Palo Alto?

18 East Palo Alto 25 Menlo Park 19 Los Altos 18 Mountain View 29 Redwood City 18 Sunnyvale 24 San Carlos 22 Belmont 15 Cupertino 20 Foster City

Get AQI alerts for Palo Alto

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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 2026-10-20T20:58 UTC.