Air Quality in Merced, United States
Windy
32.5°C · 20.7% humidity
32.5°
Feels 32.5°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Merced's air quality — share it
AQI Forecast
27
11am
25
25
32
2pm
30
29
28
5pm
27
26
26
8pm
28
34
34
11pm
34
34
34
2am
34
34
34
5am
34
34
34
8am
54
54
Air Quality Index Trend
46h · 3 stnMerced's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Merced is 1.6× the WHO annual guideline of 5 µg/m³.
20.7%
Humidity
72.1 km/h
Wind NNW
1013.6 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.84 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Merced?
Temperature & Precipitation
PM2.5 Trend
46h · 3 stationsPM2.57.84 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX17.4
Extreme
What is the 7-day forecast for Merced?
05-28
32.9° 12.1°
05-29
32.5° 11.7°
05-30
31.1° 17.9°
05-31
34.3° 22.0°
06-01
41.5° 14.1°
06-02
36.4° 14.0°
06-03
35.6° 8.1°
Both models agree
Avg diff: 4.5°C
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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 2026-05-28T21:46 UTC.