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West Salem (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

Cloudy
-13°C
Cloudy
Humidity
70.2%
Wind
4 m/s
Pressure
1038.6 hPa
Direction
340°
Sunrise
05:00
Sunset
17:00
24h Forecast:
Temp.
-18° / -9°
Precip.
0mm
Max wind
4.5 m/s

Hourly Forecast

30.01
Now
Weather
-13°
31.01
00:00
Weather
-13°
31.01
01:00
Weather
-14°
31.01
02:00
Weather
-15°
31.01
03:00
Weather
-16°
31.01
04:00
Weather
-16°
31.01
05:00
Weather
-17°
31.01
06:00
Weather
-17°
31.01
07:00
Weather
-17°
31.01
08:00
Weather
-17°
31.01
09:00
Weather
-17°
31.01
10:00
Weather
-18°
31.01
11:00
Weather
-17°
31.01
12:00
Weather
-16°
31.01
13:00
Weather
-16°
31.01
14:00
Weather
-15°
31.01
15:00
Weather
-14°
31.01
16:00
Weather
-13°
31.01
17:00
Weather
-12°
31.01
18:00
Weather
-11°
31.01
19:00
Weather
-10°
31.01
20:00
Weather
-9°
31.01
21:00
Weather
-9°
31.01
22:00
Weather
-10°

Temperature

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

Precipitation

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

Wind

4.5m/s
0m/s
23:00
4.4 m/s
00:00
4.1 m/s
01:00
4.5 m/s
02:00
4.2 m/s
03:00
3.9 m/s
04:00
3.6 m/s
05:00
3.4 m/s
06:00
3.4 m/s
07:00
3.6 m/s
08:00
3.5 m/s
09:00
3.5 m/s
10:00
3.4 m/s
11:00
3 m/s
12:00
2.8 m/s
13:00
2.8 m/s
14:00
3 m/s
15:00
2.7 m/s
16:00
2.4 m/s
17:00
2.1 m/s
18:00
1.9 m/s
19:00
1.5 m/s
20:00
0.7 m/s
21:00
0.9 m/s
22:00
1 m/s
23:00 10:00 22:00

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
99.6 km
29
9.7%

Measurement time: 2026-01-30 22:00

Calculated from PM2.5/PM10

O3
22.5 km
73.82 µg/m3
46.1%

Measurement time: 2026-01-30 21:43

source: OpenWeatherMap

PM2.5
99.6 km
7 µg/m3
8.3%

Measurement time: 2026-01-30 22:00

source: Aqicn

PM10
99.6 km
4 µg/m3
2.9%

Measurement time: 2026-01-30 22:00

source: Aqicn

CO
22.5 km
0.15729 mg/m3
1.1%

Measurement time: 2026-01-30 21:43

source: OpenWeatherMap

NO2
22.5 km
2.02 µg/m3
1%

Measurement time: 2026-01-30 21:43

source: OpenWeatherMap

SO2
22.5 km
0.81 µg/m3
0.2%

Measurement time: 2026-01-30 21:43

source: OpenWeatherMap

Info


Region: Wisconsin
Latitude: 43.89913
Longitude: -91.08125


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About Air Quality in West Salem

Air quality in West Salem 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 West Salem

  • 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 West Salem?

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 West Salem

If you're planning outdoor activities in West Salem, 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.