What is the air quality in Hamilton today?

The current Air Quality Index (AQI) in Hamilton is 42 (Good). PM2.5 concentration is 10.19 µg/m³.

What is the temperature in Hamilton right now?

The current temperature in Hamilton is 11.7°C (feels like 11.7°C). Humidity is 64.0% and wind speed is 34.6 km/h.

Is it safe to go outside in Hamilton?

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

Air Quality in Hamilton, United States

Partly Cloudy

11.7°C · 64.0% humidity

11.7°

Feels 11.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

3 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

44h · 7 stn

View full history →

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

64.0%

Humidity

34.6 km/h

Wind E

1024.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

10.19 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Hamilton?

Temperature & Precipitation

PM2.5 Trend

44h · 7 stations

PM2.510.19 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (3 stations within 25 km)

10.19

Median

10.17

Average

9.8

Low

10.6

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +3.3

What is the 7-day forecast for Hamilton?

10-20

15.7° 1.7°

10-21

22.1° 8.1°

10-22

23.3° 6.1°

10-23

19.3° 4.3°

0.5 mm

10-24

21.2° 7.3°

10-25

13.7° 3.0°

0.06 mm

10-26

19.3° 8.9°

0.19 mm

Both models agree Avg diff: 4.2°C

Where are air quality stations near Hamilton?

Sycamore, Ohio, USA

21.5 km PM2.5: 9.6 µg/m³

Colerain, Ohio, USA

23.4 km PM2.5: 9.8 µg/m³

Colerain, Ohio, USA

23.4 km PM2.5: 10.1 µg/m³

What cities are near Hamilton?

37 Fairfield 37 Forest Park 42 Middletown 35 White Oak 43 Mason 30 Norwood 27 Cincinnati 42 Lebanon 42 Springboro 30 Newport

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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 2026-10-20T22:42 UTC.