Today | Weather | Wednesday, September 9, 2026

Weather in Cincinnati, Ohio

09:13 PM
Now
Cloudy Night
81° F
Feels Like 84°
Precipitation 49 %
Wind 7 mph
Humidity 78 %
Today
Stormy Weather
Day 90°
Night 72°
Precipitation 97 %
Wind 6 mph

Cincinnati Weather Forecast Updated

47 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 9, 2025)
Cloudy Night

Day

79°

Night

48°

Wind

4 mph

Precipitation

0 %

Air Quality in Cincinnati

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.24 µg/m³
PM10 6.8 µg/m³
O3 0.043 ppm
NO2 1.7 ppb
SO2 0.4 ppb
CO 0.11 ppm
NH3 1.13 µg/m³
NO 0 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)
PM2.56.24 µg/m³
PM106.8 µg/m³
O384.95 µg/m³
NO23.19 µg/m³
SO21.03 µg/m³
CO126.29 µg/m³
NH31.13 µg/m³
NO0 µg/m³