Air Quality in Gilroy, United States

Clear
31.4°C · 38.2% humidity
31.4°
Feels 31.4°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
34 5am
34
34
23 8am
26
21
23 11am
24
25
33 2pm
33
33
33 5pm
34
34
34 8pm
34
34
34 11pm
34
34
34 2am
34
34
AD 728×90

Air Quality Index Trend

45h · 40 stn

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

38.2%
Humidity
8.7 km/h
Wind WSW
1015.9 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
23
5.64 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Gilroy?

Temperature & Precipitation

PM2.5 Trend

45h · 40 stations
PM2.55.64 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (4 stations within 25 km)
5.64
Median
5.79
Average
4.26
Low
7.07
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +1.7

What is the 7-day forecast for Gilroy?

09-05
31.4° 12.0°
09-06
35.3° 13.6°
09-07
33.3° 9.9°
09-08
35.2° 11.9°
09-09
30.4° 14.6°
09-10
28.7° 11.3°
09-11
29.5° 13.9°
Both models agree Avg diff: 5.3°C

Where are air quality stations near Gilroy?

22
Aromas School
14.5 km PM2.5: 5.2 µg/m³
28
San Juan Bautista
18.5 km PM2.5: 6.6 µg/m³
18
Watsonville - Starlight Elementary School
20.4 km PM2.5: 4.3 µg/m³
30
Hollister-Rancho San Justo Middle School
23.8 km PM2.5: 7.1 µg/m³
34
Hollister-Fairview Road, San Benito, California
25.7 km PM2.5: 8.2 µg/m³
21
Elkhorn Elementary School
26.8 km PM2.5: 5.0 µg/m³
27
Moss Landing
29.6 km PM2.5: 6.5 µg/m³

What cities are near Gilroy?

20 Morgan Hill 18 Watsonville 30 Hollister 21 Prunedale 17 Live Oak 23 Salinas 19 Santa Cruz 34 Marina 20 Los Gatos 22 Campbell
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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 2026-09-05T15:52 UTC.