Air Quality in Walnut Creek, United States

Partly Cloudy
17.9°C · 55.0% humidity
17.9°
Feels 17.9°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
67 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
16 5pm
16
16
17 8pm
17
17
17 11pm
17
4
4 2am
17
17
17 5am
17
29
29 8am
29
42
42 11am
42
42
67 2pm
42
29
Station readings
16
16
16
CAMS model adj -8
25
25
25
25
25
25
25
25
12
12
25
25
25
25
37
37
37
50
50
50
50
75
50
37
AD 728×90

PM2.5 Trend (24h)

25h · 100 stations
55.0%
Humidity
26.7 km/h
Wind W
1011.6 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Walnut Creek?

Temperature & Precipitation

PM2.54.21 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (67 stations within 25 km)
4.21
Median
4.13
Average
2.14
Low
8.64
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +3.2

What is the 7-day forecast for Walnut Creek?

04-09
21.8° 14.2°
0.13 mm
04-10
18.7° 11.4°
6.06 mm
04-11
20.3° 11.1°
04-12
14.2° 8.3°
0.06 mm
04-13
14.4° 6.5°
0.13 mm
04-14
19.0° 8.3°
04-15
22.8° 11.0°
Both models agree Avg diff: 3.1°C

Where are air quality stations near Walnut Creek?

18
Concord, Contra Costa, California
4.7 km
14
Concord, Contra Costa, California
4.7 km
15
Martinez 3
12.3 km PM2.5: 3.7 µg/m³
14
Berkeley-Martinez 1
13.2 km PM2.5: 3.4 µg/m³
16
Skyline HS
14.5 km PM2.5: 3.9 µg/m³
16
Thornhill ES
15.0 km PM2.5: 3.9 µg/m³
15
Montera MS/Joaquin Miller ES
15.4 km PM2.5: 3.7 µg/m³
16
Montclair ES
15.5 km PM2.5: 3.9 µg/m³
18
Lawrence Hall of Science
16.2 km PM2.5: 4.4 µg/m³
16
Lawrence Hall of Science
16.3 km PM2.5: 3.9 µg/m³

What cities are near Walnut Creek?

18 Pleasant Hill 18 Moraga 17 Orinda 15 Martinez 18 San Ramon 14 Bay Point 14 Benicia 16 Berkeley 14 Pittsburg 16 Oakland

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:36 UTC.