Air Quality in Saint Joseph, United States
Windy
26.9°C · 47.8% humidity
26.9°
Feels 26.9°
19
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Saint Joseph's air quality — share it
AQI Forecast
Calibrated
22
3pm
22
22
19
6pm
22
22
22
9pm
22
22
42
12am
42
42
42
3am
42
22
22
6am
22
15
15
9am
15
22
22
12pm
42
42
Station readings
45h ago
AQI 15
PM2.5 3.6 µg/m³ · 45h ago
Air Quality Index Trend
18h · 1 stnSaint Joseph's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
47.8%
Humidity
52.8 km/h
Wind E
1018.5 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
4.6 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Saint Joseph?
Temperature & Precipitation
PM2.5 Trend
18h · 1 stationPM2.54.6 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX6.9
High
Station readings (1 station within 25 km)
4.6
Median
4.6
Average
4.6
Low
4.6
High
PM2.5 µg/m³ · Model: 10.85 · Bias: +6.2
What is the 7-day forecast for Saint Joseph?
08-03
26.9° 17.2°
0.69 mm
08-04
35.2° 14.3°
08-05
34.4° 15.8°
1.69 mm
08-06
43.1° 21.9°
1.31 mm
08-07
29.4° 20.7°
08-08
39.7° 19.5°
0.69 mm
08-09
38.4° 21.9°
1.13 mm
Both models agree
Avg diff: 6.0°C
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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 2026-08-07T23:59 UTC.