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Arlington Heights (Illinois) (US)

Air Quality Trend (last 7 days)

Good (0-50)
Moderate (51-100)
Unhealthy for Sensitive Groups (101-150)
Unhealthy (151-200)
Very Unhealthy (201-300)
Hazardous (300+)

Weather - 48h MET Norway

Bezchmurnie
10°C
Bezchmurnie
Humidity
38.8%
Wind
5 m/s
Pressure
1020.7 hPa
Direction
282°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
3° / 10°
Precip.
0.2mm
Max wind
7 m/s

Hourly Forecast

05.04
Now
Weather
10°
05.04
23:00
Weather
10°
06.04
00:00
Weather
06.04
01:00
Weather
06.04
02:00
Weather
06.04
03:00
Weather
06.04
04:00
Weather
0.2
06.04
05:00
Weather
06.04
06:00
Weather
5
06.04
07:00
Weather
06.04
08:00
Weather
6
06.04
09:00
Weather
6
06.04
10:00
Weather
5
06.04
11:00
Weather
06.04
12:00
Weather
06.04
13:00
Weather
6
06.04
14:00
Weather
7
06.04
15:00
Weather
7
06.04
16:00
Weather
7
06.04
17:00
Weather
7
06.04
18:00
Weather
7
06.04
19:00
Weather
7
06.04
20:00
Weather
7
06.04
21:00
Weather
6

Temperature

10°C
3°C
22:00
10°C
23:00
10°C
00:00
9°C
01:00
7°C
02:00
6°C
03:00
6°C
04:00
6°C
05:00
6°C
06:00
6°C
07:00
6°C
08:00
6°C
09:00
4°C
10:00
3°C
11:00
3°C
12:00
3°C
13:00
4°C
14:00
5°C
15:00
6°C
16:00
7°C
17:00
7°C
18:00
7°C
19:00
8°C
20:00
8°C
21:00
8°C
22:00 09:00 21:00

Precipitation

0.2mm
0mm
04:00
0.2mm
22:00 09:00 21:00

Wind

7m/s
0m/s
22:00
5 m/s
23:00
4.4 m/s
00:00
3.5 m/s
01:00
3.3 m/s
02:00
3 m/s
03:00
3.5 m/s
04:00
4.1 m/s
05:00
4.8 m/s
06:00
5.1 m/s
07:00
5 m/s
08:00
5.7 m/s
09:00
5.7 m/s
10:00
5.2 m/s
11:00
5 m/s
12:00
4.9 m/s
13:00
5.9 m/s
14:00
7 m/s
15:00
6.7 m/s
16:00
7 m/s
17:00
6.7 m/s
18:00
6.5 m/s
19:00
6.5 m/s
20:00
6.5 m/s
21:00
6.3 m/s
22:00 09:00 21:00

Radiation

0.055 uSv
37.2 km
6.9%

Measurement time: 2026-04-05 00:56

source: epa_radnet

We display the worst measurements from all stations in the area. This approach provides a more cautious assessment of air quality, accounting for local pollution sources.

AQI
28.8 km
63
21%

Measurement time: 2026-04-05 23:00

Calculated from PM2.5/PM10

O3
26.1 km
40 µg/m3
25%

Measurement time: 2026-04-05 22:00

source: Aqicn

PM2.5
28.8 km
18 µg/m3
21.4%

Measurement time: 2026-04-05 23:00

source: Aqicn

About Air Quality in Arlington Heights

Air quality in Arlington Heights is monitored in real-time by sensors and measurement stations. On this page you'll find current data on major air pollutants including particulate matter PM2.5 and PM10, nitrogen dioxide (NO2), ozone (O3), and radiation levels.

Common Pollutants in Arlington Heights

  • PM2.5 - fine particulate matter up to 2.5 micrometers, particularly harmful to health
  • PM10 - particulate matter up to 10 micrometers from traffic and industry
  • NO2 - nitrogen dioxide mainly emitted by vehicles
  • O3 - tropospheric ozone formed in photochemical reactions

When is Air Quality Best in Arlington Heights?

Generally, the best air quality occurs:

  • Early morning (5:00-7:00 AM) before rush hour traffic
  • After rainfall which cleanses the atmosphere
  • During strong winds that disperse pollutants
  • In summer months when heating systems are less used

Tips for Runners in Arlington Heights

If you're planning outdoor activities in Arlington Heights, always check the current AQI value. When AQI exceeds 100, consider moving your workout indoors or shortening the distance. People with respiratory issues, children, and seniors should be especially cautious during elevated pollution levels. Choose routes away from busy streets and industrial areas.