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Casa Grande (Arizona) (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

Sans nuages
40°C
Sans nuages
Humidity
3.7%
Wind
4 m/s
Pressure
1009.1 hPa
Direction
313°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
19° / 40°
Precip.
0mm
Max wind
4.1 m/s

Hourly Forecast

20.03
Now
Weather
40°
21.03
00:00
Weather
39°
21.03
01:00
Weather
37°
21.03
02:00
Weather
34°
21.03
03:00
Weather
31°
21.03
04:00
Weather
30°
21.03
05:00
Weather
29°
21.03
06:00
Weather
27°
21.03
07:00
Weather
26°
21.03
08:00
Weather
26°
21.03
09:00
Weather
26°
21.03
10:00
Weather
24°
21.03
11:00
Weather
22°
21.03
12:00
Weather
19°
21.03
13:00
Weather
19°
21.03
14:00
Weather
19°
21.03
15:00
Weather
22°
21.03
16:00
Weather
26°
21.03
17:00
Weather
31°
21.03
18:00
Weather
34°
21.03
19:00
Weather
36°
21.03
20:00
Weather
38°
21.03
21:00
Weather
39°
21.03
22:00
Weather
39°

Temperature

40°C
19°C
23:00
40°C
00:00
39°C
01:00
37°C
02:00
34°C
03:00
31°C
04:00
30°C
05:00
29°C
06:00
27°C
07:00
26°C
08:00
26°C
09:00
26°C
10:00
24°C
11:00
22°C
12:00
19°C
13:00
19°C
14:00
19°C
15:00
22°C
16:00
26°C
17:00
31°C
18:00
34°C
19:00
36°C
20:00
38°C
21:00
39°C
22:00
39°C
23:00 10:00 22:00

Precipitation

0mm
0mm
23:00 10:00 22:00

Wind

4.1m/s
0m/s
23:00
4 m/s
00:00
4.1 m/s
01:00
2.5 m/s
02:00
2.6 m/s
03:00
2.6 m/s
04:00
2.4 m/s
05:00
2.2 m/s
06:00
2.6 m/s
07:00
2.8 m/s
08:00
2.4 m/s
09:00
1.4 m/s
10:00
1.3 m/s
11:00
1.7 m/s
12:00
2.1 m/s
13:00
2.3 m/s
14:00
2.6 m/s
15:00
3.1 m/s
16:00
2.5 m/s
17:00
2.1 m/s
18:00
1.6 m/s
19:00
0.8 m/s
20:00
1.4 m/s
21:00
2.5 m/s
22:00
3.5 m/s
23:00 10:00 22:00

Radiation

0.086 uSv
69.8 km
10.7%

Measurement time: 2026-03-20 00:20

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
65.3 km
52
17.3%

Measurement time: 2026-03-20 23:00

Calculated from PM2.5/PM10

O3
90.7 km
101.31 µg/m3
63.3%

Measurement time: 2026-03-20 22:53

source: OpenWeatherMap

PM2.5
65.3 km
13 µg/m3
15.5%

Measurement time: 2026-03-20 23:00

source: Aqicn

PM10
65.3 km
14 µg/m3
10%

Measurement time: 2026-03-20 23:00

source: Aqicn

NO2
65.3 km
4.7 µg/m3
2.4%

Measurement time: 2026-03-20 23:00

source: Aqicn

CO
90.7 km
0.08747 mg/m3
0.6%

Measurement time: 2026-03-20 22:53

source: OpenWeatherMap

SO2
90.7 km
0.32 µg/m3
0.1%

Measurement time: 2026-03-20 22:53

source: OpenWeatherMap

Info


Region: Arizona
Latitude: 32.8795
Longitude: -111.75735


Solar Energy

Low
276.9 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Casa Grande

About Air Quality in Casa Grande

Air quality in Casa Grande 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 Casa Grande

  • 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 Casa Grande?

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 Casa Grande

If you're planning outdoor activities in Casa Grande, 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.