What is the air quality in Westerville today?

The current Air Quality Index (AQI) in Westerville is 47 (Good). PM2.5 concentration is 11.3 µg/m³.

What is the temperature in Westerville right now?

The current temperature in Westerville is 25.1°C (feels like 25.1°C). Humidity is 75.3% and wind speed is 46.4 km/h.

Is it safe to go outside in Westerville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 5.9 (High).

Air Quality in Westerville, United States

Drizzle

25.1°C · 75.3% humidity

25.1°

Feels 25.1°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

27 2pm

47 5pm

32 8pm

27 11pm

25 2am

25 5am

24 8am

24 11am

Air Quality Index Trend

30h · 2 stn

View full history →

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

75.3%

Humidity

46.4 km/h

Wind NNE

1012.7 hPa

Pressure

5.9

UV High

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

11.3 µg/m³

PM10

34.3 µg/m³

050100150200300500

What is the weather forecast for Westerville?

Temperature & Precipitation

PM2.5 Trend

30h · 2 stations

PM2.511.3 µg/m³ ✓ WHO

Good

PM1034.3 µg/m³

Good

UV INDEX5.9

High

Station readings (2 stations within 25 km)

11.3

Median

11.3

Average

8.6

Low

14.0

High

PM2.5 µg/m³ · Model: 17.25 · Bias: +5.9

What is the 7-day forecast for Westerville?

07-21

28.3° 20.3°

1.25 mm

07-22

25.1° 19.3°

1.5 mm

07-23

21.2° 16.1°

0.56 mm

07-24

25.7° 14.8°

1.94 mm

07-25

21.7° 16.9°

2.56 mm

07-26

25.8° 16.9°

15.0 mm

07-27

25.1° 20.2°

2.75 mm

Both models agree Avg diff: 3.6°C

Where are air quality stations near Westerville?

New Albany, Ohio, USA

10.7 km PM2.5: 5.0 µg/m³

New Albany, Ohio, USA

10.7 km PM2.5: 10.8 µg/m³

New Albany, Ohio, USA

10.7 km PM2.5: 4.1 µg/m³

What cities are near Westerville?

47 Gahanna 47 Whitehall 47 Upper Arlington 47 Reynoldsburg 27 Hilliard 35 Delaware 47 Pataskala 36 Grove City 47 Pickerington 20 Marysville

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-07-21T21:44 UTC.