Air Quality in Union Hill-Novelty Hill, United States

Cloudy
14.4°C · 73.1% humidity
14.4°
Feels 14.4°
77
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
14 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
95 2pm
93
72
77 5pm
79
80
81 8pm
82
83
83 11pm
83
84
84 2am
84
84
84 5am
84
84
84 8am
84
84
84 11am
84
84
Station readings
95
93
72
CAMS model adj +30
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
54
AD 728×90

Air Quality Index Trend

47h · 18 stn

Union Hill-Novelty Hill'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 Union Hill-Novelty Hill is 1.6× the WHO 24-hour guideline of 15 µg/m³.

73.1%
Humidity
28.5 km/h
Wind SSW
1017.2 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
77
24.69 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Union Hill-Novelty Hill?

Temperature & Precipitation

PM2.5 Trend

47h · 18 stations
PM2.524.69 µg/m³ ×1.6 WHO
Moderate
PM1027.4 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (14 stations within 25 km)
24.69
Median
21.68
Average
16.4
Low
51.3
High
PM2.5 µg/m³ · Model: 13.5 · Bias: -11.2

What is the 7-day forecast for Union Hill-Novelty Hill?

08-03
31.8° 9.3°
08-04
26.2° 10.4°
0.06 mm
08-05
32.2° 11.0°
08-06
23.7° 13.6°
0.06 mm
08-07
28.5° 12.4°
08-08
27.1° 8.3°
08-09
24.6° 8.5°
Both models agree Avg diff: 4.7°C

Where are air quality stations near Union Hill-Novelty Hill?

57
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 15.0 µg/m³
64
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 18.3 µg/m³
69
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 20.7 µg/m³
67
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 19.7 µg/m³
76
Issaquah-Lake Sammamish
14.3 km PM2.5: 24.1 µg/m³
73
Town Center, Lake Forest Park, Washington, USA
20.6 km PM2.5: 22.6 µg/m³
68
Seattle-NE 127th St
20.7 km PM2.5: 20.1 µg/m³
68
Olive St, Seattle, Washington, USA
21.8 km PM2.5: 20.2 µg/m³
76
AireCiudadano USA Seat 01 27a3fd
22.9 km 0.0°C 0.0% RH PM2.5: 24.0 µg/m³
71
Seattle-College Way N
23.1 km PM2.5: 21.8 µg/m³

What cities are near Union Hill-Novelty Hill?

81 Sammamish 77 Redmond 73 Cottage Lake 79 City of Sammamish 83 West Lake Sammamish 71 Kirkland 67 Inglewood-Finn Hill 66 Bothell 75 Issaquah 65 Kenmore
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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 2026-08-08T00:00 UTC.