Air Quality in Hilo, United States
Drizzle
16.4°C · 93.6% humidity
16.4°
Feels 16.4°
42
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
AQI Forecast
27
4pm
27
27
42
7pm
36
33
31
10pm
29
28
27
1am
26
26
26
4am
26
25
25
7am
25
27
27
10am
27
27
27
1pm
27
27
Air Quality Index Trend
19h · 1 stnHilo's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
93.6%
Humidity
23.7 km/h
Wind ENE
1017.7 hPa
Pressure
30.0
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
10.13 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Hilo?
Temperature & Precipitation
PM2.5 Trend
19h · 1 stationPM2.510.13 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX30.0
Extreme
Station readings (2 stations within 25 km)
10.13
Median
10.55
Average
10.1
Low
11.0
High
PM2.5 µg/m³ · Model: 6.0 · Bias: -4.1
What is the 7-day forecast for Hilo?
08-03
21.6° 15.9°
1.69 mm
08-04
18.6° 16.4°
1.06 mm
08-05
21.3° 15.9°
1.06 mm
08-06
21.6° 17.4°
0.38 mm
08-07
21.7° 16.1°
1.19 mm
08-08
21.6° 16.2°
0.31 mm
08-09
20.7° 17.1°
0.5 mm
Both models agree
Avg diff: 2.7°C
Where are air quality stations near Hilo?
What cities are near Hilo?
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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 2026-08-08T05:39 UTC.