Air Quality in Capitol Hill, United States

Drizzle
22.5°C · 92.4% humidity
22.5°
Feels 22.5°
18
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
34 10pm
27
27
18 1am
19
20
22 4am
23
23
24 7am
24
33
34 10am
34
34
34 1pm
27
27
25 4pm
25
24
24 7pm
25
25
AD 728×90

Air Quality Index Trend

46h · 3 stn

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

92.4%
Humidity
22.9 km/h
Wind NNW
1016.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
18
4.39 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Capitol Hill?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.54.39 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
4.39
Median
5.14
Average
4.1
Low
7.0
High
PM2.5 µg/m³ · Model: 6.25 · Bias: +1.9

What is the 7-day forecast for Capitol Hill?

05-30
24.2° 14.8°
9.5 mm
05-31
30.9° 11.5°
06-01
30.6° 14.8°
4.69 mm
06-02
25.9° 15.6°
06-03
25.9° 17.8°
6.56 mm
06-04
23.7° 20.1°
0.31 mm
06-05
25.8° 17.0°
0.25 mm
Both models agree Avg diff: 4.3°C

Where are air quality stations near Capitol Hill?

46
Aurora Hills Visitor Center, Northern Virginia, USA
6.2 km PM2.5: 11.0 µg/m³
41
Lee District Park - Fairfax County, Northern Virginia, USA
15.7 km PM2.5: 9.8 µg/m³
23
NASA GSFC 1
18.0 km PM2.5: 5.4 µg/m³
54
HU-Beltsville, Maryland, USA
21.3 km PM2.5: 13.5 µg/m³

What cities are near Capitol Hill?

18 Capitol Riverfront 19 H Street NE 20 NoMa 18 Downtown DC 18 Southwest Waterfront 19 Northwest One 19 Mount Vernon Triangle 20 Shaw 18 Washington 19 Golden Triangle
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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 2026-05-30T05:02 UTC.