What is the air quality in Gaithersburg today?

The current Air Quality Index (AQI) in Gaithersburg is 22 (Good). PM2.5 concentration is 5.3 µg/m³.

What is the temperature in Gaithersburg right now?

The current temperature in Gaithersburg is 16.3°C (feels like 16.3°C). Humidity is 43.5% and wind speed is 22.2 km/h.

Is it safe to go outside in Gaithersburg?

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

Air Quality in Gaithersburg, United States

Clear

16.3°C · 43.5% humidity

16.3°

Feels 16.3°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 21 stn

View full history →

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

43.5%

Humidity

22.2 km/h

Wind E

1021.3 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

5.3 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Gaithersburg?

Temperature & Precipitation

PM2.5 Trend

46h · 21 stations

PM2.55.3 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

5.3

Median

5.3

Average

5.3

Low

5.3

High

PM2.5 µg/m³ · Model: 6.5 · Bias: +1.2

What is the 7-day forecast for Gaithersburg?

10-20

16.3° 5.0°

4.19 mm

10-21

24.1° 5.0°

0.06 mm

10-22

20.2° 8.5°

10-23

13.3° 3.2°

0.56 mm

10-24

15.4° 7.0°

10-25

18.0° 5.6°

0.13 mm

10-26

14.9° 10.5°

11.31 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Gaithersburg?

Rockville, Maryland, USA

8.8 km PM2.5: 8.9 µg/m³

3414 Nebraska Ave NW

25.3 km PM2.5: 4.9 µg/m³

LAMB

25.8 km PM2.5: 4.2 µg/m³

Ashburn - Broad Run High School, Northern Virginia, USA

28.1 km PM2.5: 4.8 µg/m³

Ashburn - Broad Run High School, Northern Virginia, USA

28.1 km PM2.5: 4.6 µg/m³

Ashburn - Broad Run High School, Northern Virginia, USA

28.1 km PM2.5: 4.3 µg/m³

Lee Montessori Brookland

29.7 km PM2.5: 4.3 µg/m³

Taste Makers Food Hall

30.2 km PM2.5: 6.1 µg/m³

What cities are near Gaithersburg?

22 Montgomery Village 23 Redland 20 Germantown 22 Rockville 20 North Potomac 23 Olney 20 North Bethesda 22 Aspen Hill 20 Potomac 22 Damascus

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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.