Air Quality in Caldwell, United States
Clear
32.6°C · 22.2% humidity
32.6°
Feels 32.6°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast
Nearby Monitoring Stations
Caldwell's air quality — share it
AQI Forecast
24
1pm
24
24
26
4pm
24
25
25
7pm
25
25
25
10pm
25
27
27
1am
27
27
27
4am
27
27
25
7am
25
25
25
10am
25
24
Air Quality Index Trend
42h · 1 stnCaldwell'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 Caldwell is 1.2× the WHO annual guideline of 5 µg/m³.
22.2%
Humidity
18.3 km/h
Wind SSW
1017.1 hPa
Pressure
9.4
UV Very High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.15 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Caldwell?
Temperature & Precipitation
PM2.5 Trend
42h · 1 stationPM2.56.15 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX9.4
Very High
What is the 7-day forecast for Caldwell?
05-28
25.5° 11.7°
05-29
32.6° 11.4°
0.06 mm
05-30
25.7° 15.9°
05-31
34.8° 18.9°
06-01
33.7° 7.2°
06-02
30.0° 13.1°
0.06 mm
06-03
27.9° 5.6°
Both models agree
Avg diff: 4.5°C
What cities are near Caldwell?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T22:50 UTC.