Air Quality in Horten, Norway
Windy
11.5°C · 73.9% humidity
11.5°
Feels 11.5°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Horten's air quality — share it
AQI Forecast
Calibrated
68
10pm
64
68
32
1am
42
48
53
4am
57
59
60
7am
62
62
63
10am
64
64
64
1pm
65
65
65
4pm
65
65
65
7pm
65
65
Station readings
64
72
CAMS model
adj +41
27
27
27
27
27
25
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
5h · 1 stnHorten'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.
73.9%
Humidity
54.9 km/h
Wind N
1009.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.7 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Horten?
Temperature & Precipitation
PM2.5 Trend
5h · 1 stationPM2.57.7 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
7.7
Median
7.7
Average
7.7
Low
7.7
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -1.5
What is the 7-day forecast for Horten?
07-21
22.2° 15.4°
2.06 mm
07-22
22.0° 11.5°
0.13 mm
07-23
18.8° 12.8°
4.06 mm
07-24
19.1° 14.7°
0.88 mm
07-25
18.7° 12.4°
5.25 mm
07-26
19.3° 12.8°
0.69 mm
07-27
16.8° 13.0°
8.06 mm
Both models agree
Avg diff: 2.4°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 2026-07-21T23:43 UTC.