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Port Washington (Wisconsin) (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

Fog
4°C
Fog
Humidity
95.2%
Wind
6 m/s
Pressure
1005.7 hPa
Direction
13°
Sunrise
04:00
Sunset
16:00
24h Forecast:
Temp.
3° / 13°
Precip.
6.2mm
Max wind
8.1 m/s

Hourly Forecast

31.03
Now
Weather
6
31.03
05:00
Weather
31.03
06:00
Weather
31.03
07:00
Weather
31.03
08:00
Weather
13°
6
31.03
09:00
Weather
13°
6
31.03
10:00
Weather
11°
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
11°
0.2
5
31.03
16:00
Weather
0.5
6
31.03
17:00
Weather
0.5
8
31.03
18:00
Weather
0.6
8
31.03
19:00
Weather
4.4
6
31.03
20:00
Weather
31.03
21:00
Weather
6
31.03
22:00
Weather
31.03
23:00
Weather
10°
5
01.04
00:00
Weather
01.04
01:00
Weather
01.04
02:00
Weather
01.04
03:00
Weather
7

Temperature

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

Precipitation

4.4mm
0mm
15:00
0.2mm
16:00
0.5mm
17:00
0.5mm
18:00
0.6mm
19:00
4.4mm
04:00 15:00 03:00

Wind

8.1m/s
0m/s
04:00
6.3 m/s
05:00
1.8 m/s
06:00
3.9 m/s
07:00
3.7 m/s
08:00
6.4 m/s
09:00
6.2 m/s
10:00
4.8 m/s
11:00
3.7 m/s
12:00
4.5 m/s
13:00
3.9 m/s
14:00
3 m/s
15:00
5.4 m/s
16:00
6.1 m/s
17:00
8.1 m/s
18:00
7.9 m/s
19:00
5.8 m/s
20:00
4.6 m/s
21:00
5.8 m/s
22:00
5 m/s
23:00
5.2 m/s
00:00
4.2 m/s
01:00
3.8 m/s
02:00
4.7 m/s
03:00
6.5 m/s
04:00 15:00 03:00

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
23.1 km
39
13%

Measurement time: 2026-03-31 03:09

Calculated from PM2.5/PM10

O3
23.1 km
106.19 µg/m3
66.4%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

PM2.5
23.1 km
9.55 µg/m3
11.4%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

PM10
23.1 km
11.92 µg/m3
8.5%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

NO2
23.1 km
3.96 µg/m3
2%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

CO
23.1 km
0.14944 mg/m3
1.1%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

SO2
23.1 km
2.23 µg/m3
0.6%

Measurement time: 2026-03-31 03:09

source: OpenWeatherMap

Info


Region: Wisconsin
Latitude: 43.38722
Longitude: -87.87564

Cities in the area:

About Air Quality in Port Washington

Air quality in Port Washington 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 Port Washington

  • 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 Port Washington?

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 Port Washington

If you're planning outdoor activities in Port Washington, 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.