Air Quality in Herisau, Switzerland
Drizzle
19.1°C · 77.5% humidity
19.1°
Feels 19.1°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
Herisau's air quality — share it
AQI Forecast
34
10am
27
27
15
1pm
18
20
21
4pm
22
23
24
7pm
26
26
34
10pm
34
34
34
1am
54
34
54
4am
34
34
34
7am
34
27
Air Quality Index Trend
45h · 5 stnHerisau's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.
77.5%
Humidity
9.1 km/h
Wind W
1020.7 hPa
Pressure
5.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
3.57 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Herisau?
Temperature & Precipitation
PM2.5 Trend
45h · 5 stationsPM2.53.57 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX5.9
High
What is the 7-day forecast for Herisau?
09-05
19.1° 9.5°
1.31 mm
09-06
14.8° 12.1°
6.13 mm
09-07
22.3° 10.8°
3.69 mm
09-08
18.7° 12.2°
0.25 mm
09-09
20.4° 12.1°
0.88 mm
09-10
25.5° 10.8°
0.75 mm
09-11
19.7° 4.9°
0.13 mm
Both models agree
Avg diff: 4.9°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 2026-09-05T11:47 UTC.