What is the air quality in Catonsville today?

The current Air Quality Index (AQI) in Catonsville is 24 (Good). PM2.5 concentration is 5.8 µg/m³.

What is the temperature in Catonsville right now?

The current temperature in Catonsville is 27.8°C (feels like 29.4°C). Humidity is 45.1% and wind speed is 25.9 km/h.

Is it safe to go outside in Catonsville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 5.9 (High).

Air Quality in Catonsville, United States

Clear

27.8°C · 45.1% humidity

27.8°

Feels 29.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

25 2pm

24 5pm

27 8pm

27 11pm

27 2am

25 5am

25 8am

25 11am

Air Quality Index Trend

48h · 3 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.

45.1%

Humidity

25.9 km/h

Wind ENE

1013.6 hPa

Pressure

5.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

5.8 µg/m³

PM10▲

34.3 µg/m³

050100150200300500

What is the weather forecast for Catonsville?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations

PM2.55.8 µg/m³ ✓ WHO

Good

PM1034.3 µg/m³

Good

UV INDEX5.9

High

Station readings (1 station within 25 km)

5.8

Median

5.8

Average

5.8

Low

5.8

High

PM2.5 µg/m³ · Model: 16.55 · Bias: +10.8

What is the 7-day forecast for Catonsville?

07-21

29.5° 22.5°

0.06 mm

07-22

29.9° 23.3°

0.94 mm

07-23

30.4° 19.1°

11.81 mm

07-24

26.4° 20.5°

0.5 mm

07-25

29.2° 21.7°

2.31 mm

07-26

28.2° 21.5°

4.88 mm

07-27

26.3° 23.1°

0.06 mm

Both models agree Avg diff: 3.0°C

Where are air quality stations near Catonsville?

Howard County Near Road, Maryland, USA

17.4 km PM2.5: 20.7 µg/m³

Howard County Near Road, Maryland, USA

17.4 km PM2.5: 8.4 µg/m³

Padonia, Maryland, USA

22.8 km PM2.5: 7.4 µg/m³

HU-Beltsville, Maryland, USA

27.2 km PM2.5: 15.0 µg/m³

What cities are near Catonsville?

24 Arbutus 30 Ilchester 24 Woodlawn 30 Ellicott City 30 Elkridge 30 West Elkridge 24 Gwynn Oak 24 Lochearn 31 Hanover 24 Milford Mill

Get AQI alerts for Catonsville

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T21:53 UTC.