Air Quality in Union Hill-Novelty Hill, United States

Partly Cloudy
21.2°C · 53.9% humidity
21.2°
Feels 21.2°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
14 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
29 7am
40
44
26 10am
29
29
29 1pm
29
9
9 4pm
2
2
2 7pm
9
29
29 10pm
29
41
41 1am
58
58
58 4am
59
58
Station readings
29
40
44
18
CAMS model adj -25
54
54
54
54
54
54
54
54
34
34
27
27
27
34
54
54
54
66
66
83
83
83
84
83
AD 728×90

Air Quality Index Trend

48h · 17 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.

53.9%
Humidity
25.1 km/h
Wind NNW
1019.0 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
26
6.21 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

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

Temperature & Precipitation

PM2.5 Trend

48h · 17 stations
PM2.56.21 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX5.9
High
AD 300×250
Station readings (14 stations within 25 km)
6.21
Median
5.83
Average
2.9
Low
12.6
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +3.4

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

09-05
23.7° 9.3°
09-06
25.0° 11.6°
09-07
21.9° 9.4°
1.94 mm
09-08
28.0° 9.8°
2.63 mm
09-09
25.9° 12.5°
0.94 mm
09-10
28.8° 11.8°
09-11
24.7° 8.3°
Both models agree Avg diff: 4.0°C

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

52
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 12.6 µg/m³
14
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 3.4 µg/m³
15
SE 12th St, Bellevue, Washington, USA
12.5 km PM2.5: 3.6 µg/m³
16
Issaquah-Lake Sammamish
14.3 km PM2.5: 3.9 µg/m³
16
Town Center, Lake Forest Park, Washington, USA
20.6 km PM2.5: 3.8 µg/m³
18
Town Center, Lake Forest Park, Washington, USA
20.6 km PM2.5: 4.3 µg/m³
22
Seattle-NE 127th St
20.7 km PM2.5: 5.2 µg/m³
9
Olive St, Seattle, Washington, USA
21.8 km PM2.5: 2.2 µg/m³
21
AireCiudadano USA Seat 01 27a3fd
22.9 km 0.0°C 0.0% RH PM2.5: 5.0 µg/m³
25
Seattle-College Way N
23.1 km PM2.5: 6.0 µg/m³

What cities are near Union Hill-Novelty Hill?

26 Sammamish 25 Redmond 25 Cottage Lake 24 City of Sammamish 25 West Lake Sammamish 23 Kirkland 22 Inglewood-Finn Hill 21 Bothell 20 Issaquah 20 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 2026-09-05T17:21 UTC.