Today | Weather | Wednesday, September 9, 2026

Weather in Hamilton, Ohio

08:27 PM
Now
Cloudy Weather
81° F
Feels Like 88°
Precipitation 40 %
Wind 6 mph
Humidity 77 %
Today
Stormy Weather
Day 90°
Night 72°
Precipitation 88 %
Wind 5 mph

Hamilton Weather Forecast Updated

Last updated on

Air Quality in Hamilton

NOW
43 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.71 µg/m³
PM10 7.28 µg/m³
O3 0.046 ppm
NO2 1.9 ppb
SO2 0.5 ppb
CO 0.11 ppm
NH3 0.95 µg/m³
NO 0.03 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.56.71 µg/m³
PM107.28 µg/m³
O390.97 µg/m³
NO23.58 µg/m³
SO21.33 µg/m³
CO130.37 µg/m³
NH30.95 µg/m³
NO0.03 µg/m³