Air Quality in Olten, Switzerland
Partly Cloudy
15.3°C · 56.5% humidity
15.3°
Feels 15.3°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Olten's air quality — share it
AQI Forecast
Calibrated
2
9pm
22
22
17
12am
18
19
20
3am
21
21
21
6am
22
22
22
9am
22
22
2
12pm
2
2
0
3pm
0
0
0
6pm
0
0
Station readings
4
CAMS model
adj -32
34
54
54
54
54
54
54
54
54
54
54
54
54
54
54
34
34
34
25
25
25
25
25
25
Air Quality Index Trend
42h · 1 stnOlten'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.
56.5%
Humidity
7.7 km/h
Wind SSE
1015.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
4.04 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Olten?
Temperature & Precipitation
PM2.5 Trend
42h · 1 stationPM2.54.04 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
4.04
Median
3.4
Average
1.0
Low
5.8
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +5.7
What is the 7-day forecast for Olten?
07-21
29.4° 13.9°
07-22
23.2° 15.3°
0.56 mm
07-23
22.6° 16.8°
1.06 mm
07-24
24.4° 13.1°
07-25
32.3° 11.9°
2.25 mm
07-26
34.3° 14.4°
1.0 mm
07-27
31.2° 15.1°
3.13 mm
Both models agree
Avg diff: 3.0°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 2026-07-21T22:03 UTC.