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Ridgefield (Washington) (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

Clear sky
14°C
Clear sky
Humidity
38.4%
Wind
4 m/s
Pressure
1018.2 hPa
Direction
350°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
3° / 15°
Precip.
2.9mm
Max wind
4.9 m/s

Hourly Forecast

30.03
Now
Weather
14°
30.03
23:00
Weather
15°
31.03
00:00
Weather
15°
31.03
01:00
Weather
13°
31.03
02:00
Weather
11°
31.03
03:00
Weather
31.03
04:00
Weather
31.03
05:00
Weather
31.03
06:00
Weather
31.03
07:00
Weather
31.03
08:00
Weather
31.03
09:00
Weather
31.03
10:00
Weather
31.03
11:00
Weather
31.03
12:00
Weather
31.03
13:00
Weather
31.03
14:00
Weather
31.03
15:00
Weather
0.1
31.03
16:00
Weather
0.7
31.03
17:00
Weather
0.9
31.03
18:00
Weather
0.5
31.03
19:00
Weather
0.3
31.03
20:00
Weather
0.3
31.03
21:00
Weather
0.1

Temperature

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

Precipitation

0.9mm
0mm
15:00
0.1mm
16:00
0.7mm
17:00
0.9mm
18:00
0.5mm
19:00
0.3mm
20:00
0.3mm
21:00
0.1mm
22:00 09:00 21:00

Wind

4.9m/s
0m/s
22:00
3.5 m/s
23:00
3.5 m/s
00:00
3.7 m/s
01:00
4 m/s
02:00
4.5 m/s
03:00
4.9 m/s
04:00
4.1 m/s
05:00
3.4 m/s
06:00
3.4 m/s
07:00
3.5 m/s
08:00
3.2 m/s
09:00
3 m/s
10:00
2.9 m/s
11:00
3 m/s
12:00
3 m/s
13:00
2.8 m/s
14:00
2.4 m/s
15:00
2.1 m/s
16:00
2.6 m/s
17:00
2.8 m/s
18:00
2.3 m/s
19:00
1.9 m/s
20:00
1.9 m/s
21:00
2.1 m/s
22:00 09:00 21:00

Radiation

0.041 uSv
33.7 km
5.1%

Measurement time: 2026-03-30 00:33

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
38.8 km
33
11%

Measurement time: 2026-03-30 23:00

Calculated from PM2.5/PM10

O3
99.1 km
108.26 µg/m3
67.7%

Measurement time: 2026-03-30 22:47

source: OpenWeatherMap

PM2.5
38.8 km
8 µg/m3
9.5%

Measurement time: 2026-03-30 23:00

source: Aqicn

PM10
35.3 km
2.16 µg/m3
1.5%

Measurement time: 2026-03-31 00:25

source: OpenWeatherMap

CO
35.3 km
0.14584 mg/m3
1%

Measurement time: 2026-03-31 00:25

source: OpenWeatherMap

NO2
35.3 km
1.59 µg/m3
0.8%

Measurement time: 2026-03-31 00:25

source: OpenWeatherMap

SO2
35.3 km
0.62 µg/m3
0.2%

Measurement time: 2026-03-31 00:25

source: OpenWeatherMap

Info


Region: Washington
Latitude: 45.81511
Longitude: -122.7426


Solar Energy

Low
269 W/m²
Solar Radiation
Solar Calculator
Calculate energy production for Ridgefield

About Air Quality in Ridgefield

Air quality in Ridgefield 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 Ridgefield

  • 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 Ridgefield?

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 Ridgefield

If you're planning outdoor activities in Ridgefield, 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.