What is the air quality in Hayward today?

The current Air Quality Index (AQI) in Hayward is 18 (Good). PM2.5 concentration is 4.33 µg/m³.

What is the temperature in Hayward right now?

The current temperature in Hayward is 24.9°C (feels like 24.9°C). Humidity is 26.2% and wind speed is 18.0 km/h.

Is it safe to go outside in Hayward?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Hayward, United States

Clear

24.9°C · 26.2% humidity

24.9°

Feels 24.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

60 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 103 stn

View full history →

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.

26.2%

Humidity

18.0 km/h

Wind WSW

1018.4 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.33 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Hayward?

Temperature & Precipitation

PM2.5 Trend

45h · 103 stations

PM2.54.33 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (60 stations within 25 km)

4.33

Median

4.31

Average

2.76

Low

6.77

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.7

What is the 7-day forecast for Hayward?

10-20

26.0° 11.4°

10-21

25.9° 12.4°

10-22

29.9° 12.7°

10-23

23.5° 13.0°

10-24

26.2° 11.7°

10-25

25.3° 12.0°

1.5 mm

10-26

25.0° 12.2°

Both models agree Avg diff: 5.1°C

Where are air quality stations near Hayward?

Grass Valley ES

10.1 km PM2.5: 4.0 µg/m³

Madison Park Academy HS

10.7 km PM2.5: 4.4 µg/m³

Esperanza ES

11.2 km PM2.5: 4.3 µg/m³

Reach Academy ES

11.3 km PM2.5: 3.0 µg/m³

Oakland - East, Alameda, California

11.4 km PM2.5: 6.0 µg/m³

Elmhurst United MS

11.4 km PM2.5: 3.8 µg/m³

Lifers 98th

11.7 km PM2.5: 6.4 µg/m³

Oakland Academy of Knowledge (OAK) ES

12.1 km PM2.5: 4.3 µg/m³

Brookfield ES

12.1 km PM2.5: 4.6 µg/m³

Castlemont High School

12.4 km PM2.5: 3.8 µg/m³

What cities are near Hayward?

18 Castro Valley 18 San Lorenzo 19 San Leandro 18 San Ramon 14 Pleasanton 18 Moraga 19 Alameda 19 Foster City 18 Oakland 16 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 2026-10-20T20:05 UTC.