What is the air quality in Walnut Creek today?

The current Air Quality Index (AQI) in Walnut Creek is 28 (Good). PM2.5 concentration is 6.68 µg/m³.

What is the temperature in Walnut Creek right now?

The current temperature in Walnut Creek is 16.0°C (feels like 16.0°C). Humidity is 72.3% and wind speed is 36.1 km/h.

Is it safe to go outside in Walnut Creek?

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

Air Quality in Walnut Creek, United States

Cloudy

16.0°C · 72.3% humidity

16.0°

Feels 16.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

63 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 95 stn

View full history →

Walnut Creek's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

72.3%

Humidity

36.1 km/h

Wind SW

1011.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.68 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Walnut Creek?

Temperature & Precipitation

PM2.5 Trend

46h · 95 stations

PM2.56.68 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (63 stations within 25 km)

6.68

Median

6.44

Average

3.1

Low

8.67

High

PM2.5 µg/m³ · Model: 6.0 · Bias: -0.7

Both models agree Avg diff: 7.0°C

Where are air quality stations near Walnut Creek?

Concord, Contra Costa, California

4.7 km PM2.5: 8.2 µg/m³

Martinez 3

12.3 km PM2.5: 4.2 µg/m³

Berkeley-Martinez 1

13.2 km PM2.5: 4.8 µg/m³

Skyline HS

14.5 km PM2.5: 6.6 µg/m³

Thornhill ES

15.0 km PM2.5: 5.8 µg/m³

Montera MS/Joaquin Miller ES

15.4 km PM2.5: 5.5 µg/m³

Montclair ES

15.5 km PM2.5: 6.0 µg/m³

Lawrence Hall of Science

16.3 km PM2.5: 5.7 µg/m³

Hillcrest ES

16.4 km PM2.5: 5.4 µg/m³

Chabot ES

16.9 km PM2.5: 6.4 µg/m³

What cities are near Walnut Creek?

29 Pleasant Hill 27 Moraga 27 Orinda 20 Martinez 26 San Ramon 25 Bay Point 23 Benicia 26 Berkeley 26 Pittsburg 29 Oakland

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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 2026-10-21T08:52 UTC.