Air Quality in Hayward, United States

Windy
21.1°C · 43.4% humidity
21.1°
Feels 21.1°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
61 stations

Nearby Monitoring Stations

AQI Forecast
25 11am
25
25
17 2pm
19
23
24 5pm
32
32
33 8pm
53
53
54 11pm
54
54
34 2am
34
34
34 5am
27
27
27 8am
27
27
AD 728×90

Air Quality Index Trend

46h · 108 stn

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

43.4%
Humidity
49.2 km/h
Wind WSW
1016.8 hPa
Pressure
19.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
17
3.96 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hayward?

Temperature & Precipitation

PM2.5 Trend

46h · 108 stations
PM2.53.96 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX19.9
Extreme
AD 300×250
Station readings (61 stations within 25 km)
3.96
Median
3.85
Average
2.71
Low
6.2
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +2.3

What is the 7-day forecast for Hayward?

05-28
23.0° 7.9°
05-29
23.5° 9.7°
05-30
19.9° 12.2°
05-31
28.5° 16.6°
06-01
28.3° 11.5°
06-02
22.1° 10.2°
06-03
27.8° 7.4°
Both models agree Avg diff: 3.7°C

Where are air quality stations near Hayward?

18
Grass Valley ES
10.1 km PM2.5: 4.2 µg/m³
15
Madison Park Academy HS
10.7 km PM2.5: 3.7 µg/m³
17
Lifers 105th
11.0 km PM2.5: 4.0 µg/m³
18
Esperanza ES
11.2 km PM2.5: 4.2 µg/m³
67
Oakland - East, Alameda, California
11.4 km PM2.5: 19.7 µg/m³
22
Oakland - East, Alameda, California
11.4 km PM2.5: 5.3 µg/m³
18
Elmhurst United MS
11.4 km PM2.5: 4.4 µg/m³
17
Lifers 98th
11.7 km PM2.5: 4.0 µg/m³
18
Oakland Academy of Knowledge (OAK) ES
12.1 km PM2.5: 4.2 µg/m³
16
Castlemont High School
12.4 km PM2.5: 3.8 µg/m³

What cities are near Hayward?

17 Castro Valley 17 San Lorenzo 17 San Leandro 16 San Ramon 15 Pleasanton 16 Moraga 16 Alameda 16 Foster City 16 Oakland 13 East Palo Alto
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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 2026-05-28T21:46 UTC.