Today | Weather | Monday, April 27, 2026

Weather in Hamilton, Ohio

11:18 AM
Now
Cloudy Weather
63° F
Feels Like 66°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 5
Humidity 77 %
Today
Cloudy Weather
Day 81°
Night 63°
Precipitation 25 %
Wind 8 mph
UV Index (0 - 11+) 5

Hamilton Weather Forecast Updated

4 minutes ago
Last updated on

Air Quality in Hamilton

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.67 µg/m³
PM10 5.2 µg/m³
O3 0.034 ppm
NO2 0.9 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 1.43 µg/m³
NO 0.4 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)
PM2.54.67 µg/m³
PM105.2 µg/m³
O366.17 µg/m³
NO21.62 µg/m³
SO20.35 µg/m³
CO143.87 µg/m³
NH31.43 µg/m³
NO0.4 µg/m³