Air Quality in Napa, United States

Partly Cloudy
18.9°C · 68.2% humidity
18.9°
Feels 18.9°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model

Nearby Monitoring Stations

AQI Forecast Calibrated
20 3pm
18
16
15 6pm
15
15
15 9pm
15
15
15 12am
15
15
15 3am
15
28
28 6am
40
40
40 9am
53
40
40 12pm
53
53
Station readings
20
18
16
CAMS model adj +3
25
12
12
12
12
12
12
12
12
12
12
12
12
12
25
25
37
37
37
50
37
37
50
50
AD 728×90

PM2.5 Trend (24h)

23h · 18 stations
68.2%
Humidity
9.0 km/h
Wind SSW
1011.3 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Napa?

Temperature & Precipitation

PM2.53.27 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250

What is the 7-day forecast for Napa?

04-09
20.0° 9.3°
04-10
17.9° 9.1°
2.56 mm
04-11
18.1° 8.8°
0.19 mm
04-12
13.8° 1.5°
04-13
15.2° 3.3°
0.31 mm
04-14
18.4° 5.6°
04-15
21.3° 9.3°
Both models agree Avg diff: 2.5°C

What cities are near Napa?

13 American Canyon 14 Agua Caliente 10 Vallejo 13 Suisun 15 Vacaville 17 Benicia 16 Hercules 10 Petaluma 16 Pinole 10 Novato

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T18:57 UTC.