What is the air quality in Caldwell today?

The current Air Quality Index (AQI) in Caldwell is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in Caldwell right now?

The current temperature in Caldwell is 25.4°C (feels like 25.4°C). Humidity is 29.5% and wind speed is 100.4 km/h.

Is it safe to go outside in Caldwell?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 1.4 (Low).

Air Quality in Caldwell, United States

Windy

25.4°C · 29.5% humidity

25.4°

Feels 25.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Model forecast

Nearby Monitoring Stations

AQI Forecast

24 5pm

24 8pm

24 11pm

24 2am

24 5am

24 8am

25 11am

24 2pm

Air Quality Index Trend

44h · 1 stn

View full history →

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.

29.5%

Humidity

100.4 km/h

Wind NNW

1006.6 hPa

Pressure

1.4

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Caldwell?

Temperature & Precipitation

PM2.5 Trend

44h · 1 station

PM2.55.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX1.4

Low

What is the 7-day forecast for Caldwell?

06-09

25.4° 14.6°

06-10

24.6° 12.2°

06-11

28.5° 15.1°

06-12

32.7° 13.6°

06-13

36.2° 13.6°

06-14

33.2° 18.0°

06-15

31.2° 9.9°

0.19 mm

Both models agree Avg diff: 5.0°C

What cities are near Caldwell?

24 Nampa 25 Meridian 25 Eagle 25 Kuna 24 Boise 13 Twin Falls 10 Pendleton 8 Walla Walla 32 Hermiston 12 Kennewick

Get AQI alerts for Caldwell

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-06-09T02:04 UTC.