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Foothill Farms (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

Partly cloudy
18°C
Partly cloudy
Humidity
78.7%
Wind
2 m/s
Pressure
1021.3 hPa
Direction
303°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
13° / 22°
Precip.
0mm
Max wind
2.4 m/s

Hourly Forecast

27.02
Now
Weather
18°
27.02
20:00
Weather
19°
27.02
21:00
Weather
20°
27.02
22:00
Weather
21°
27.02
23:00
Weather
22°
28.02
00:00
Weather
22°
28.02
01:00
Weather
21°
28.02
02:00
Weather
19°
28.02
03:00
Weather
18°
28.02
04:00
Weather
17°
28.02
05:00
Weather
17°
28.02
06:00
Weather
16°
28.02
07:00
Weather
15°
28.02
08:00
Weather
14°
28.02
09:00
Weather
14°
28.02
10:00
Weather
14°
28.02
11:00
Weather
14°
28.02
12:00
Weather
13°
28.02
13:00
Weather
13°
28.02
14:00
Weather
13°
28.02
15:00
Weather
13°
28.02
16:00
Weather
14°
28.02
17:00
Weather
16°
28.02
18:00
Weather
18°

Temperature

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

Precipitation

0mm
0mm
19:00 06:00 18:00

Wind

2.4m/s
0m/s
19:00
1.6 m/s
20:00
2 m/s
21:00
2.2 m/s
22:00
2.4 m/s
23:00
2.2 m/s
00:00
1.8 m/s
01:00
0.9 m/s
02:00
1.2 m/s
03:00
1.2 m/s
04:00
1.2 m/s
05:00
1.2 m/s
06:00
1.1 m/s
07:00
1.5 m/s
08:00
1.5 m/s
09:00
1 m/s
10:00
1.1 m/s
11:00
1.4 m/s
12:00
2.1 m/s
13:00
2.4 m/s
14:00
2 m/s
15:00
2.2 m/s
16:00
2.3 m/s
17:00
1.6 m/s
18:00
1.1 m/s
19:00 06:00 18:00

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
76.5 km
85
28.3%

Measurement time: 2026-02-27 20:08

Calculated from PM2.5/PM10

O3
76.5 km
67.8 µg/m3
42.4%

Measurement time: 2026-02-27 20:08

source: OpenWeatherMap

PM2.5
76.5 km
28.6 µg/m3
34%

Measurement time: 2026-02-27 20:08

source: OpenWeatherMap

PM10
76.5 km
35.97 µg/m3
25.7%

Measurement time: 2026-02-27 20:08

source: OpenWeatherMap

NO2
76.5 km
18.52 µg/m3
9.3%

Measurement time: 2026-02-27 20:08

source: OpenWeatherMap

CO
76.5 km
0.36008 mg/m3
2.6%

Measurement time: 2026-02-27 20:08

source: OpenWeatherMap

SO2
50.1 km
3.16 µg/m3
0.9%

Measurement time: 2026-02-27 20:51

source: OpenWeatherMap

Info


Region: California
Latitude: 38.67877
Longitude: -121.35114


Solar Energy

Moderate
320.6 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Foothill Farms

About Air Quality in Foothill Farms

Air quality in Foothill Farms 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 Foothill Farms

  • 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 Foothill Farms?

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 Foothill Farms

If you're planning outdoor activities in Foothill Farms, 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.