Air Quality in Hayward, United States

Rain
15.7°C · 67.5% humidity
15.7°
Feels 15.7°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
60 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
15 9pm
15
14
16 12am
16
16
16 3am
16
16
28 6am
41
41
66 9am
66
66
66 12pm
28
41
28 3pm
16
16
16 6pm
16
16
Station readings
15
15
14
CAMS model adj -9
25
25
25
25
25
25
25
25
25
37
50
50
75
75
75
75
37
50
37
25
25
25
25
25
AD 728×90

PM2.5 Trend (24h)

25h · 107 stations
67.5%
Humidity
37.6 km/h
Wind WNW
1009.7 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.53.36 µg/m³ ✓ WHO
Good
PM1027.45 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
3.36
Median
3.37
Average
2.4
Low
5.87
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +5.5
04-10
17.6° 9.6°
3.94 mm
04-11
17.3° 8.9°
0.06 mm
04-12
12.5° 6.1°
2.25 mm
04-13
15.0° 3.9°
0.25 mm
04-14
18.4° 5.5°
04-15
21.2° 8.3°
04-16
20.3° 8.1°

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T00:50 UTC.