Air Quality in Harrisburg, United States

Cloudy
19.4°C · 79.8% humidity
19.4°
Feels 19.4°
25
Good
Air quality is satisfactory. Enjoy outdoor activities.
Model forecast

Nearby Monitoring Stations

AQI Forecast
24 8am
24
24
25 11am
24
24
24 2pm
24
24
24 5pm
24
25
25 8pm
25
25
25 11pm
25
25
25 2am
25
25
25 5am
25
25
AD 728×90

Air Quality Index Trend

42h · 1 stn

Harrisburg'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 Harrisburg is 1.2× the WHO annual guideline of 5 µg/m³.

79.8%
Humidity
36.3 km/h
Wind SE
1019.1 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
25
5.9 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Harrisburg?

Temperature & Precipitation

PM2.5 Trend

42h · 1 station
PM2.55.9 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250

What is the 7-day forecast for Harrisburg?

05-29
19.4° 9.9°
05-30
25.2° 15.0°
6.06 mm
05-31
28.5° 9.2°
06-01
28.2° 13.1°
06-02
22.7° 10.2°
06-03
25.0° 20.8°
3.06 mm
06-04
21.5° 19.0°
0.06 mm
Both models agree Avg diff: 4.5°C

Where are air quality stations near Harrisburg?

22
Harrisburg, Pennsylvania, USA
4.3 km PM2.5: 5.3 µg/m³
24
Hershey, Pennsylvania, USA
17.2 km PM2.5: 5.8 µg/m³

What cities are near Harrisburg?

25 Carlisle 25 York 23 Hanover 26 Chambersburg 23 Westminster 25 Hunt Valley 25 Reisterstown 25 Cockeysville 38 Bel Air North 44 North Bel Air
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-29T15:24 UTC.