Air Quality in Walnut Creek, United States

Partly Cloudy
17.9°C · 55.0% humidity
17.9°
Feels 17.9°
20
Good
Air quality is satisfactory. Enjoy outdoor activities.
67 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 3pm
18
16
18 6pm
18
18
18 9pm
18
18
18 12am
5
5
18 3am
18
18
18 6am
30
30
30 9am
43
43
43 12pm
43
68
Station readings
18
18
16
CAMS model adj -7
25
25
25
25
25
25
25
25
25
25
12
12
25
25
25
25
37
37
37
50
50
50
50
75
AD 728×90

PM2.5 Trend (24h)

25h · 98 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

PM2.54.65 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (67 stations within 25 km)
4.65
Median
4.64
Average
1.98
Low
8.96
High
PM2.5 µg/m³ · Model: 7.4 · Bias: +2.8

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: 3.2°C

Where are air quality stations near Walnut Creek?

14
Concord, Contra Costa, California
4.7 km
10
Concord, Contra Costa, California
4.7 km
12
Martinez 3
12.3 km PM2.5: 2.8 µg/m³
13
Berkeley-Martinez 1
13.2 km PM2.5: 3.2 µg/m³
19
Skyline HS
14.5 km PM2.5: 4.6 µg/m³
20
Thornhill ES
15.0 km PM2.5: 4.9 µg/m³
20
Montera MS/Joaquin Miller ES
15.4 km PM2.5: 4.8 µg/m³
22
Montclair ES
15.5 km PM2.5: 5.3 µg/m³
18
Lawrence Hall of Science
16.2 km PM2.5: 4.4 µg/m³
30
Lawrence Hall of Science
16.3 km PM2.5: 7.3 µg/m³

What cities are near Walnut Creek?

19 Pleasant Hill 19 Moraga 19 Orinda 18 Martinez 20 San Ramon 13 Bay Point 17 Benicia 18 Berkeley 13 Pittsburg 18 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 2026-04-09T18:59 UTC.