What is the air quality in Harrisburg today?

The current Air Quality Index (AQI) in Harrisburg is 25 (Good). PM2.5 concentration is 6.04 µg/m³.

What is the temperature in Harrisburg right now?

The current temperature in Harrisburg is 9.0°C (feels like 5.9°C). Humidity is 73.2% and wind speed is 21.9 km/h.

Is it safe to go outside in Harrisburg?

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

Air Quality in Harrisburg, United States

Cloudy

9.0°C · 73.2% humidity

9.0°

Feels 5.9°

Good

Air quality is satisfactory. Enjoy outdoor activities.

4 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

44h · 8 stn

View full history →

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.

73.2%

Humidity

21.9 km/h

Wind E

1028.1 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

6.04 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Harrisburg?

Temperature & Precipitation

PM2.5 Trend

44h · 8 stations

PM2.56.04 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (4 stations within 25 km)

6.04

Median

6.3

Average

3.6

Low

8.4

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +7.5

What is the 7-day forecast for Harrisburg?

10-21

22.0° 4.9°

10-22

20.0° 8.3°

0.25 mm

10-23

11.3° 3.9°

4.87 mm

10-24

15.0° 6.6°

10-25

14.1° 5.2°

5.75 mm

10-26

14.6° 7.8°

4.81 mm

10-27

10.9° 4.7°

1.06 mm

Both models agree Avg diff: 3.8°C

Where are air quality stations near Harrisburg?

Harrisburg, Pennsylvania, USA

4.3 km PM2.5: 3.6 µg/m³

Harrisburg, Pennsylvania, USA

4.3 km PM2.5: 3.6 µg/m³

Hershey, Pennsylvania, USA

17.2 km PM2.5: 9.4 µg/m³

Hershey, Pennsylvania, USA

17.2 km PM2.5: 10.8 µg/m³

What cities are near Harrisburg?

34 Carlisle 27 York 35 Hanover 20 Chambersburg 35 Westminster 44 Hunt Valley 44 Reisterstown 44 Cockeysville 36 Bel Air North 32 North Bel Air

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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 2026-10-21T01:07 UTC.