What is the air quality in Potomac today?

The current Air Quality Index (AQI) in Potomac is 18 (Good). PM2.5 concentration is 4.21 µg/m³.

What is the temperature in Potomac right now?

The current temperature in Potomac is 19.7°C (feels like 19.7°C). Humidity is 58.1% and wind speed is 31.1 km/h.

Is it safe to go outside in Potomac?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.9 (Moderate).

Air Quality in Potomac, United States

Rain

19.7°C · 58.1% humidity

19.7°

Feels 19.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

27 3pm

18 6pm

22 9pm

24 12am

24 3am

24 6am

24 9am

24 12pm

Air Quality Index Trend

47h · 3 stn

View full history →

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

58.1%

Humidity

31.1 km/h

Wind NW

1019.7 hPa

Pressure

2.9

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.21 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Potomac?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations

PM2.54.21 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.9

Moderate

Station readings (2 stations within 25 km)

4.21

Median

4.2

Average

4.1

Low

4.3

High

PM2.5 µg/m³ · Model: 6.0 · Bias: +1.8

What is the 7-day forecast for Potomac?

05-28

26.7° 21.9°

1.37 mm

05-29

27.2° 9.5°

8.19 mm

05-30

23.8° 16.9°

5.19 mm

05-31

30.3° 10.4°

06-01

31.3° 13.7°

2.69 mm

06-02

25.5° 14.3°

06-03

26.3° 18.8°

7.44 mm

Both models agree Avg diff: 3.9°C

Where are air quality stations near Potomac?

Aurora Hills Visitor Center, Northern Virginia, USA

22.0 km PM2.5: 10.1 µg/m³

Ashburn - Broad Run High School, Northern Virginia, USA

24.3 km PM2.5: 3.1 µg/m³

What cities are near Potomac?

17 Great Falls 24 North Bethesda 17 North Potomac 33 Rockville 18 McLean 21 Bethesda 18 Wolf Trap 18 Tysons 17 Reston 28 Wheaton

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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 2026-05-28T22:59 UTC.