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Lake Arrowhead (California) (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

سماء صافية
10°C
سماء صافية
Humidity
75.9%
Wind
4 m/s
Pressure
1014.5 hPa
Direction
67°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
8° / 18°
Precip.
3.6mm
Max wind
7.6 m/s

Hourly Forecast

10.04
Now
Weather
10°
10.04
13:00
Weather
10°
10.04
14:00
Weather
10°
10.04
15:00
Weather
13°
10.04
16:00
Weather
15°
10.04
17:00
Weather
16°
5
10.04
18:00
Weather
17°
6
10.04
19:00
Weather
18°
0.2
7
10.04
20:00
Weather
18°
7
10.04
21:00
Weather
18°
0.2
7
10.04
22:00
Weather
18°
0.1
7
10.04
23:00
Weather
17°
8
11.04
00:00
Weather
16°
8
11.04
01:00
Weather
14°
7
11.04
02:00
Weather
12°
6
11.04
03:00
Weather
11°
0.4
6
11.04
04:00
Weather
10°
0.5
6
11.04
05:00
Weather
10°
0.5
6
11.04
06:00
Weather
0.6
6
11.04
07:00
Weather
0.3
5
11.04
08:00
Weather
0.3
5
11.04
09:00
Weather
0.2
5
11.04
10:00
Weather
0.2
5
11.04
11:00
Weather
0.1

Temperature

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

Precipitation

0.6mm
0mm
19:00
0.2mm
21:00
0.2mm
22:00
0.1mm
03:00
0.4mm
04:00
0.5mm
05:00
0.5mm
06:00
0.6mm
07:00
0.3mm
08:00
0.3mm
09:00
0.2mm
10:00
0.2mm
11:00
0.1mm
12:00 23:00 11:00

Wind

7.6m/s
0m/s
12:00
3.7 m/s
13:00
3.5 m/s
14:00
3.6 m/s
15:00
4.2 m/s
16:00
5 m/s
17:00
5.4 m/s
18:00
6.1 m/s
19:00
6.8 m/s
20:00
7 m/s
21:00
7.2 m/s
22:00
7.4 m/s
23:00
7.6 m/s
00:00
7.6 m/s
01:00
7.4 m/s
02:00
6.2 m/s
03:00
5.8 m/s
04:00
6 m/s
05:00
5.9 m/s
06:00
5.6 m/s
07:00
5.2 m/s
08:00
5.2 m/s
09:00
5.1 m/s
10:00
5.2 m/s
11:00
5 m/s
12:00 23:00 11:00

Radiation

No sensor within 100 km.

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
47.5 km
104
34.7%

Measurement time: 2026-04-10 12:00

Calculated from PM2.5/PM10

PM2.5
47.5 km
37 µg/m3
44%

Measurement time: 2026-04-10 12:00

source: Aqicn

O3
85.4 km
67.33 µg/m3
42.1%

Measurement time: 2026-04-10 13:38

source: OpenWeatherMap

PM10
32.6 km
15.07 µg/m3
10.8%

Measurement time: 2026-04-10 13:36

source: OpenWeatherMap

NO2
47.5 km
9.8 µg/m3
4.9%

Measurement time: 2026-04-10 12:00

source: Aqicn

CO
32.6 km
0.14523 mg/m3
1%

Measurement time: 2026-04-10 13:36

source: OpenWeatherMap

SO2
32.6 km
1.84 µg/m3
0.5%

Measurement time: 2026-04-10 13:36

source: OpenWeatherMap

Info


Region: California
Latitude: 34.24834
Longitude: -117.18921


Solar Energy

Low
199.5 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Lake Arrowhead

About Air Quality in Lake Arrowhead

Air quality in Lake Arrowhead 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 Lake Arrowhead

  • 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 Lake Arrowhead?

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 Lake Arrowhead

If you're planning outdoor activities in Lake Arrowhead, 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.