Air Quality in Sunnyvale, United States

Partly Cloudy
18.3°C · 58.4% humidity
18.3°
Feels 18.3°
27
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 5pm
18
18
8 8pm
8
21
21 11pm
8
21
21 2am
21
21
21 5am
33
46
46 8am
71
71
71 11am
46
21
33 2pm
21
21
Station readings
18
18
18
CAMS model adj -4
25
25
12
12
12
25
25
12
25
25
25
25
25
37
50
50
75
75
75
50
25
37
25
25
AD 728×90

PM2.5 Trend (24h)

25h · 99 stations
58.4%
Humidity
25.2 km/h
Wind S
1011.3 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Sunnyvale?

Temperature & Precipitation

PM2.56.37 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (8 stations within 25 km)
6.37
Median
6.86
Average
4.73
Low
10.77
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -0.5

What is the 7-day forecast for Sunnyvale?

04-09
21.8° 15.0°
0.94 mm
04-10
18.7° 12.1°
2.94 mm
04-11
19.3° 11.5°
0.06 mm
04-12
13.2° 9.0°
6.75 mm
04-13
14.8° 7.6°
0.25 mm
04-14
17.7° 8.3°
04-15
20.5° 11.0°
Both models agree Avg diff: 2.0°C

Where are air quality stations near Sunnyvale?

25
Cupertino City Hall
5.6 km PM2.5: 5.9 µg/m³
28
N Foothhill Blvd
5.8 km PM2.5: 6.7 µg/m³
34
JFK Middle School
6.6 km PM2.5: 8.1 µg/m³
22
Environment Education Center
6.6 km PM2.5: 5.3 µg/m³
27
Acterra!
9.2 km PM2.5: 6.5 µg/m³
34
San Jose - Jackson St, Santa Clara, California
12.7 km
28
San Jose - Jackson St, Santa Clara, California
12.7 km
65
San Jose - Jackson St, Santa Clara, California
12.7 km
21
Berkeley-Palo Alto
13.6 km PM2.5: 5.1 µg/m³
42
Cristo Rey Jesuit High School
15.4 km PM2.5: 10.0 µg/m³

What cities are near Sunnyvale?

27 Mountain View 27 Cupertino 27 Los Altos 28 Santa Clara 24 Saratoga 28 Campbell 25 Palo Alto 28 San Jose 28 Milpitas 25 East Palo Alto

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T20:49 UTC.