Air Quality in Salem, United States
Rain
15.7°C · 94.7% humidity
15.7°
Feels 15.7°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
AQI Forecast
24
3pm
24
24
23
6pm
24
24
25
9pm
25
25
25
12am
27
27
27
3am
27
27
27
6am
27
27
24
9am
24
24
24
12pm
24
24
Air Quality Index Trend
40h · 2 stnSalem's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Salem is 1.1× the WHO annual guideline of 5 µg/m³.
94.7%
Humidity
35.0 km/h
Wind NNE
1018.7 hPa
Pressure
4.4
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
5.5 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Salem?
Temperature & Precipitation
PM2.5 Trend
40h · 2 stationsPM2.55.5 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX4.4
Moderate
Station readings (1 station within 25 km)
5.5
Median
5.5
Average
5.5
Low
5.5
High
PM2.5 µg/m³ · Model: 7.0 · Bias: +1.5
What is the 7-day forecast for Salem?
05-28
32.8° 19.8°
0.19 mm
05-29
33.8° 8.3°
27.38 mm
05-30
27.8° 19.1°
05-31
30.1° 8.9°
06-01
32.0° 11.4°
06-02
28.9° 12.0°
06-03
24.7° 15.8°
1.5 mm
Both models agree
Avg diff: 4.8°C
Where are air quality stations near Salem?
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-28T22:52 UTC.