What is the air quality in Vacaville today?

The current Air Quality Index (AQI) in Vacaville is 20 (Good). PM2.5 concentration is 4.67 µg/m³.

What is the temperature in Vacaville right now?

The current temperature in Vacaville is 26.5°C (feels like 26.5°C). Humidity is 15.2% and wind speed is 17.3 km/h.

Is it safe to go outside in Vacaville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Vacaville, United States

Clear

26.5°C · 15.2% humidity

26.5°

Feels 26.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 49 stn

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

15.2%

Humidity

17.3 km/h

Wind NE

1018.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.67 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Vacaville?

Temperature & Precipitation

PM2.5 Trend

45h · 49 stations

PM2.54.67 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Vacaville?

10-20

31.9° 16.1°

10-21

29.1° 15.1°

0.06 mm

10-22

28.4° 13.4°

10-23

24.0° 16.1°

10-24

24.4° 14.7°

10-25

24.9° 9.6°

1.56 mm

10-26

24.2° 15.0°

Both models agree Avg diff: 5.5°C

Where are air quality stations near Vacaville?

Davis-UCD Campus, Yolo, California

27.2 km PM2.5: 5.3 µg/m³

ANR Davis - 2nd Street

32.0 km PM2.5: 4.6 µg/m³

What cities are near Vacaville?

18 Suisun 21 Dixon 18 Napa 21 Davis 13 American Canyon 13 Bay Point 15 Vallejo 15 Benicia 13 Pittsburg 14 Martinez

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

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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 2026-10-20T20:05 UTC.