Air Quality in Modesto, United States

Windy
31.5°C · 18.4% humidity
31.5°
Feels 31.5°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast

Nearby Monitoring Stations

AQI Forecast
34 1pm
27
27
52 4pm
45
40
36 7pm
41
39
37 10pm
56
56
55 1am
55
55
54 4am
54
54
54 7am
54
54
54 10am
34
34
AD 728×90

Air Quality Index Trend

46h · 8 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.

18.4%
Humidity
40.2 km/h
Wind NW
1009.1 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
52
12.85 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Modesto?

Temperature & Precipitation

PM2.5 Trend

46h · 8 stations
PM2.512.85 µg/m³ ✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX17.4
Extreme
AD 300×250

What is the 7-day forecast for Modesto?

08-03
43.7° 17.7°
08-04
40.0° 19.9°
08-05
40.8° 17.4°
08-06
41.3° 14.3°
08-07
37.9° 20.2°
08-08
41.1° 14.7°
08-09
39.1° 13.9°
Both models agree Avg diff: 3.0°C

Where are air quality stations near Modesto?

48
Modesto-14th Street, Stanislaus, California
0.4 km PM2.5: 11.5 µg/m³
47
Modesto-14th Street, Stanislaus, California
0.4 km PM2.5: 11.3 µg/m³
52
Turlock-S Minaret Street, Stanislaus, California
22.0 km PM2.5: 12.6 µg/m³
55
Turlock-S Minaret Street, Stanislaus, California
22.0 km PM2.5: 14.0 µg/m³
38
Manteca AMS, San Joaquin, California
28.0 km PM2.5: 9.1 µg/m³
51
Manteca AMS, San Joaquin, California
28.0 km PM2.5: 12.1 µg/m³

What cities are near Modesto?

52 Ceres 52 Riverbank 63 Ripon 52 Oakdale 42 Turlock 63 Patterson 63 Manteca 68 Lathrop 63 Tracy 68 Stockton
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:56 UTC.