What is the air quality in Catonsville today?

The current Air Quality Index (AQI) in Catonsville is 39 (Good). PM2.5 concentration is 9.4 µg/m³.

What is the temperature in Catonsville right now?

The current temperature in Catonsville is 16.8°C (feels like 16.8°C). Humidity is 39.7% and wind speed is 28.3 km/h.

Is it safe to go outside in Catonsville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Catonsville, United States

Clear

16.8°C · 39.7% humidity

16.8°

Feels 16.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 19 stn

View full history →

Catonsville's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

39.7%

Humidity

28.3 km/h

Wind E

1021.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.4 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Catonsville?

Temperature & Precipitation

PM2.5 Trend

46h · 19 stations

PM2.59.4 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

9.4

Median

9.4

Average

9.4

Low

9.4

High

PM2.5 µg/m³ · Model: 8.2 · Bias: -1.2

What is the 7-day forecast for Catonsville?

10-20

16.8° 6.5°

4.69 mm

10-21

23.8° 8.9°

10-22

20.8° 12.2°

0.38 mm

10-23

16.7° 7.6°

10-24

18.3° 11.3°

10-25

20.5° 7.3°

0.25 mm

10-26

14.9° 11.9°

5.06 mm

Both models agree Avg diff: 3.7°C

Where are air quality stations near Catonsville?

Padonia, Maryland, USA

22.8 km PM2.5: 9.1 µg/m³

HU-Beltsville, Maryland, USA

27.2 km PM2.5: 9.1 µg/m³

HU-Beltsville, Maryland, USA

27.2 km PM2.5: 9.4 µg/m³

What cities are near Catonsville?

39 Arbutus 30 Ilchester 39 Woodlawn 30 Ellicott City 30 Elkridge 30 West Elkridge 39 Gwynn Oak 39 Lochearn 27 Hanover 39 Milford Mill

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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 2026-10-20T20:56 UTC.