Air Quality in Hercules, United States

Windy
22.6°C · 41.6% humidity
22.6°
Feels 22.6°
46
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
27 2pm
27
27
46 5pm
68
64
61 8pm
59
58
37 11pm
36
35
35 2am
35
34
34 5am
—
—
— 8am
—
—
27 11am
27
27
AD 728×90

Air Quality Index Trend

46h · 3 stn

Hercules'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 Hercules is 2.2× the WHO annual guideline of 5 µg/m³.

41.6%
Humidity
56.5 km/h
Wind WSW
1016.6 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
46
11.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hercules?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.511.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX6.9
High
AD 300×250
Station readings (1 station within 25 km)
11.0
Median
11.0
Average
11.0
Low
11.0
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -4.5

What is the 7-day forecast for Hercules?

05-29
22.6° 13.5°
05-30
18.7° 13.8°
05-31
21.6° 15.8°
0.06 mm
06-01
24.1° 14.4°
06-02
19.6° 11.9°
06-03
24.9° 10.2°
06-04
24.9° 11.7°
Both models agree Avg diff: 2.3°C

Where are air quality stations near Hercules?

15
A6LHM5BD
8.2 km PM2.5: 3.5 µg/m³
21
AGJLDGLM
9.2 km PM2.5: 5.1 µg/m³
24
AJ08LDN1
9.6 km PM2.5: 5.8 µg/m³
20
A8JYY391
10.4 km PM2.5: 4.7 µg/m³
45
Vallejo, Solano, California
10.5 km PM2.5: 10.8 µg/m³
12
Vallejo, Solano, California
10.5 km PM2.5: 2.9 µg/m³
23
AL9FR71M
10.7 km PM2.5: 5.5 µg/m³
19
AFYDTNFN
10.9 km PM2.5: 4.6 µg/m³
16
ACSRLHYF
11.5 km PM2.5: 3.8 µg/m³
18
A6Z53721
11.8 km PM2.5: 4.3 µg/m³

What cities are near Hercules?

46 Pinole 46 San Pablo 27 Vallejo 38 El Cerrito 26 Benicia 26 Martinez 43 Berkeley 27 American Canyon 45 Orinda 45 Pleasant Hill
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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 2026-05-29T00:10 UTC.