Air Quality in Caldwell, United States

Clear
22.5°C · 12.9% humidity
22.5°
Feels 22.5°
34
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
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Air Quality Index Trend

43h · 1 stn

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

12.9%
Humidity
20.8 km/h
Wind N
1010.7 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
34
8.2 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Caldwell?

Temperature & Precipitation

PM2.5 Trend

43h · 1 station
PM2.58.2 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX0.0
Low

What is the 7-day forecast for Caldwell?

10-20
23.5° 9.1°
10-21
22.5° 9.1°
10-22
22.0° 4.6°
10-23
18.9° 7.6°
10-24
18.7° 3.1°
0.06 mm
10-25
16.5° 7.4°
10-26
18.3° 12.4°
0.06 mm
Both models agree Avg diff: 5.2°C

What cities are near Caldwell?

34 Nampa 34 Meridian 34 Eagle 34 Kuna 27 Boise 20 Twin Falls 19 Pendleton 42 Walla Walla 36 Hermiston 38 Kennewick
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-20T22:41 UTC.