Air Quality in Catonsville, United States
Partly Cloudy
25.2°C · 52.3% humidity
25.2°
Feels 25.2°
49
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station
Nearby Monitoring Stations
Catonsville's air quality — share it
AQI Forecast
25
6pm
25
27
49
9pm
43
36
35
12am
33
31
28
3am
27
27
28
6am
28
28
27
9am
34
27
27
12pm
27
25
25
3pm
25
27
Air Quality Index Trend
45h · 27 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.
52.3%
Humidity
24.9 km/h
Wind WNW
1012.4 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
11.8 µg/m³
PM10
20.55 µg/m³
050100150200300500
What is the weather forecast for Catonsville?
Temperature & Precipitation
PM2.5 Trend
45h · 27 stationsPM2.511.8 µg/m³
✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX1.4
Low
Station readings (1 station within 25 km)
11.8
Median
11.8
Average
11.8
Low
11.8
High
PM2.5 µg/m³ · Model: 9.75 · Bias: -2.0
What is the 7-day forecast for Catonsville?
08-03
27.2° 20.7°
9.62 mm
08-04
36.6° 24.8°
08-05
35.2° 21.2°
0.25 mm
08-06
31.2° 22.2°
08-07
34.4° 21.4°
2.94 mm
08-08
38.3° 22.3°
0.5 mm
08-09
36.7° 24.8°
0.31 mm
Both models agree
Avg diff: 3.3°C
Where are air quality stations near Catonsville?
25
Howard County Near Road, Maryland, USA
17
Howard County Near Road, Maryland, USA
41
Padonia, Maryland, USA
30
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 2026-08-08T01:01 UTC.