Air Quality in Alpharetta, United States
Windy
20.1°C · 51.0% humidity
20.1°
Feels 20.1°
8
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations
Nearby Monitoring Stations
Alpharetta's air quality — share it
AQI Forecast
Calibrated
33
7pm
33
33
8
10pm
15
32
36
1am
38
40
42
4am
43
43
32
7am
32
44
45
10am
45
45
33
1pm
33
33
33
4pm
33
33
Station readings
4
5
9
CAMS model
adj -21
54
54
54
54
54
66
66
66
66
66
66
66
54
54
66
66
66
66
54
54
54
54
54
54
Air Quality Index Trend
45h · 1 stnAlpharetta's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
51.0%
Humidity
50.4 km/h
Wind NW
1011.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
1.8 µg/m³
PM10▲
20.55 µg/m³
050100150200300500
What is the weather forecast for Alpharetta?
Temperature & Precipitation
PM2.5 Trend
45h · 1 stationPM2.51.8 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
Station readings (2 stations within 25 km)
1.8
Median
3.65
Average
1.5
Low
5.8
High
PM2.5 µg/m³ · Model: 9.65 · Bias: +7.8
What is the 7-day forecast for Alpharetta?
06-09
20.3° 13.1°
4.12 mm
06-10
32.1° 22.8°
0.06 mm
06-11
27.2° 23.6°
06-12
34.9° 20.5°
4.31 mm
06-13
26.6° 17.9°
2.06 mm
06-14
31.8° 20.0°
11.06 mm
06-15
33.8° 16.5°
3.69 mm
Both models agree
Avg diff: 3.7°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 2026-06-09T02:18 UTC.