Air Quality in Catonsville, United States
Drizzle
20.4°C · 91.5% humidity
20.4°
Feels 20.4°
9
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Catonsville's air quality — share it
AQI Forecast
25
3am
25
25
9
6am
14
17
21
9am
23
31
32
12pm
32
33
26
3pm
26
27
27
6pm
27
27
34
9pm
34
54
54
12am
54
54
Air Quality Index Trend
47h · 1 stnCatonsville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
91.5%
Humidity
22.3 km/h
Wind SSW
1015.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.2 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Catonsville?
Temperature & Precipitation
PM2.5 Trend
47h · 1 stationPM2.52.2 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (1 station within 25 km)
2.2
Median
2.2
Average
2.2
Low
2.2
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +3.8
What is the 7-day forecast for Catonsville?
06-09
30.5° 13.5°
0.5 mm
06-10
31.6° 22.7°
5.12 mm
06-11
25.3° 15.9°
06-12
28.3° 17.4°
1.06 mm
06-13
27.0° 22.0°
1.19 mm
06-14
27.7° 19.2°
4.25 mm
06-15
26.6° 15.5°
0.88 mm
Both models agree
Avg diff: 4.9°C
Where are air quality stations near Catonsville?
27
Howard County Near Road, Maryland, USA
46
Howard County Near Road, Maryland, USA
40
Padonia, Maryland, USA
14
HU-Beltsville, Maryland, USA
What cities are near Catonsville?
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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 2026-06-09T10:47 UTC.