Air Quality in Herisau, Switzerland
Cloudy
12.9°C · 80.3% humidity
12.9°
Feels 12.9°
5
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Herisau's air quality — share it
AQI Forecast
Calibrated
8
9pm
8
28
5
12am
12
16
20
3am
22
24
25
6am
26
26
7
9am
7
7
1
12pm
1
1
1
3pm
1
1
0
6pm
1
1
Station readings
5
CAMS model
adj -26
34
34
54
54
54
54
54
54
54
54
54
54
34
34
34
27
27
27
27
27
27
25
27
27
Air Quality Index Trend
35h · 1 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.
80.3%
Humidity
10.6 km/h
Wind SW
1015.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.12 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Herisau?
Temperature & Precipitation
PM2.5 Trend
35h · 1 stationPM2.51.12 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
1.12
Median
1.12
Average
1.12
Low
1.12
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +8.6
What is the 7-day forecast for Herisau?
07-21
29.1° 15.2°
0.88 mm
07-22
25.8° 12.9°
2.94 mm
07-23
20.7° 16.6°
0.06 mm
07-24
19.8° 12.5°
07-25
27.0° 11.6°
11.25 mm
07-26
29.6° 15.3°
4.0 mm
07-27
32.4° 15.5°
10.31 mm
Both models agree
Avg diff: 4.5°C
Where are air quality stations near Herisau?
–
Oberriet, Adlerstrasse
34
L190 (3m von L53), L191, Bärenkreuzung L53, Austria
42
L190 (3m von L53), L191, Bärenkreuzung L53, Austria
What cities are near Herisau?
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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 2026-07-21T22:57 UTC.