What is the air quality in Westerville today?

The current Air Quality Index (AQI) in Westerville is 41 (Good). PM2.5 concentration is 9.8 µg/m³.

What is the temperature in Westerville right now?

The current temperature in Westerville is 12.4°C (feels like 12.4°C). Humidity is 71.2% and wind speed is 68.6 km/h.

Is it safe to go outside in Westerville?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Westerville, United States

Windy

12.4°C · 71.2% humidity

12.4°

Feels 12.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

25 5pm

41 8pm

30 11pm

26 2am

26 5am

25 8am

24 11am

25 2pm

Air Quality Index Trend

31h · 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. Current PM2.5 concentration in Westerville is 2.0× the WHO annual guideline of 5 µg/m³.

71.2%

Humidity

68.6 km/h

Wind N

1023.4 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.8 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Westerville?

Temperature & Precipitation

PM2.5 Trend

31h · 2 stations

PM2.59.8 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (2 stations within 25 km)

9.8

Median

9.8

Average

9.8

Low

9.8

High

PM2.5 µg/m³ · Model: 7.1 · Bias: -2.7

What is the 7-day forecast for Westerville?

05-29

27.5° 6.9°

0.25 mm

05-30

20.0° 13.7°

1.94 mm

05-31

26.7° 8.7°

06-01

28.3° 14.9°

0.06 mm

06-02

19.6° 10.8°

06-03

25.5° 21.7°

7.13 mm

06-04

25.0° 15.3°

0.13 mm

Both models agree Avg diff: 4.4°C

Where are air quality stations near Westerville?

New Albany, Ohio, USA

10.7 km PM2.5: 6.0 µg/m³

New Albany, Ohio, USA

10.7 km PM2.5: 3.6 µg/m³

New Albany, Ohio, USA

10.7 km PM2.5: 4.1 µg/m³

What cities are near Westerville?

41 Gahanna 41 Whitehall 41 Upper Arlington 41 Reynoldsburg 33 Hilliard 33 Delaware 41 Pataskala 33 Grove City 41 Pickerington 33 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 2026-05-29T00:11 UTC.