What is the air quality in Ellicott City today?

The current Air Quality Index (AQI) in Ellicott City is 22 (Good). PM2.5 concentration is 5.26 µg/m³.

What is the temperature in Ellicott City right now?

The current temperature in Ellicott City is 11.7°C (feels like 11.7°C). Humidity is 61.7% and wind speed is 48.0 km/h.

Is it safe to go outside in Ellicott City?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 12.9 (Extreme).

Air Quality in Ellicott City, United States

Windy

11.7°C · 61.7% humidity

11.7°

Feels 11.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 7am

22 10am

24 1pm

24 4pm

25 7pm

27 10pm

25 1am

25 4am

Air Quality Index Trend

47h · 1 stn

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Ellicott City's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Ellicott City is 1.1× the WHO annual guideline of 5 µg/m³.

61.7%

Humidity

48.0 km/h

Wind NE

1021.7 hPa

Pressure

12.9

UV Extreme

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.26 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Ellicott City?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station

PM2.55.26 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX12.9

Extreme

What is the 7-day forecast for Ellicott City?

05-29

22.6° 11.7°

2.63 mm

05-30

26.2° 13.1°

14.25 mm

05-31

30.1° 12.4°

06-01

30.0° 15.0°

4.56 mm

06-02

25.6° 15.7°

06-03

27.0° 19.7°

4.81 mm

06-04

23.1° 20.5°

0.06 mm

Both models agree Avg diff: 4.8°C

Where are air quality stations near Ellicott City?

Howard County Near Road, Maryland, USA

14.4 km PM2.5: 14.5 µg/m³

Howard County Near Road, Maryland, USA

14.4 km PM2.5: 4.1 µg/m³

HU-Beltsville, Maryland, USA

24.6 km PM2.5: 11.0 µg/m³

Padonia, Maryland, USA

26.0 km PM2.5: 6.7 µg/m³

What cities are near Ellicott City?

22 Ilchester 21 Columbia 23 Catonsville 23 Arbutus 23 Woodlawn 17 West Elkridge 23 Milford Mill 18 Elkridge 14 Hanover 23 Lochearn

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

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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 2026-05-29T14:40 UTC.