Air Quality in Vallejo, United States
Partly Cloudy
20.1°C · 55.0% humidity
20.1°
Feels 20.1°
91
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Vallejo's air quality — share it
AQI Forecast
34
1pm
34
34
91
4pm
75
83
75
7pm
69
65
62
10pm
60
58
37
1am
36
35
35
4am
28
28
27
7am
27
34
27
10am
34
34
Air Quality Index Trend
46h · 88 stnVallejo'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 Vallejo is 2.1× the WHO 24-hour guideline of 15 µg/m³.
55.0%
Humidity
36.0 km/h
Wind SW
1011.1 hPa
Pressure
17.4
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
30.95 µg/m³
PM10
91.15 µg/m³
050100150200300500
What is the weather forecast for Vallejo?
Temperature & Precipitation
PM2.5 Trend
46h · 88 stationsPM2.530.95 µg/m³
×2.1 WHO
Moderate
PM1091.15 µg/m³
Moderate
UV INDEX17.4
Extreme
What is the 7-day forecast for Vallejo?
08-03
22.1° 14.5°
08-04
19.4° 14.4°
08-05
24.1° 14.2°
08-06
22.9° 14.8°
08-07
20.9° 14.9°
08-08
21.5° 14.3°
08-09
25.4° 14.6°
Both models agree
Avg diff: 2.4°C
Where are air quality stations near Vallejo?
30
Vallejo, Solano, California
28
Vallejo, Solano, California
18
Vallejo, Solano, California
28
Berkeley-Martinez 1
25
Martinez 3
68
San Pablo-Rumrill, Contra Costa, California
76
San Pablo-Rumrill, Contra Costa, California
22
A882RZTJ
24
AK80QP18
10
Berkeley-MCC Downstairs
What cities are near Vallejo?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-08-07T23:56 UTC.