Air Quality in Modesto, United States

Windy
28.5°C · 14.3% humidity
28.5°
Feels 28.5°
54
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
54 5pm
46
41
37 8pm
34
32
31 11pm
30
29
26 2am
26
26
27 5am
27
27
27 8am
25
25
25 11am
25
25
AD 728×90

Air Quality Index Trend

46h · 6 stn

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

14.3%
Humidity
98.1 km/h
Wind WNW
1012.7 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
54
13.5 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Modesto?

Temperature & Precipitation

PM2.5 Trend

46h · 6 stations
PM2.513.5 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (1 station within 25 km)
13.5
Median
13.5
Average
13.5
Low
13.5
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -6.2

What is the 7-day forecast for Modesto?

06-09
28.5° 12.8°
06-10
37.0° 18.0°
06-11
38.3° 19.2°
06-12
34.8° 16.5°
06-13
37.8° 13.2°
06-14
40.3° 18.6°
06-15
33.7° 14.0°
Both models agree Avg diff: 4.5°C

Where are air quality stations near Modesto?

54
Modesto-14th Street, Stanislaus, California
0.4 km PM2.5: 13.5 µg/m³
70
Modesto-14th Street, Stanislaus, California
0.4 km PM2.5: 21.1 µg/m³
18
Turlock-S Minaret Street, Stanislaus, California
22.0 km PM2.5: 4.3 µg/m³
50
Turlock-S Minaret Street, Stanislaus, California
22.0 km PM2.5: 12.0 µg/m³
45
Manteca AMS, San Joaquin, California
28.0 km PM2.5: 10.8 µg/m³

What cities are near Modesto?

54 Ceres 36 Riverbank 20 Ripon 35 Oakdale 54 Turlock 37 Patterson 22 Manteca 22 Lathrop 22 Tracy 20 Stockton
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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 2026-06-09T00:40 UTC.