Today | Weather | Thursday, March 12, 2026

Weather in Dayton, Ohio

09:16 AM
Now
Cloudy Weather
36° F
Feels Like 30°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 2
Humidity 73 %
Today
Cloudy Weather
Day 52°
Night 41°
Precipitation 0 %
Wind 14 mph
UV Index (0 - 11+) 5

Dayton Weather Forecast Updated

36 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (March 12, 2025)
Cloudy Weather

Day

73°

Night

46°

Wind

7 mph

UV Index

5

Precipitation

0 %

Air Quality in Dayton

NOW
40 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.39 µg/m³
PM10 2.28 µg/m³
O3 0.043 ppm
NO2 2.9 ppb
SO2 1.1 ppb
CO 0.14 ppm
NH3 0.4 µg/m³
NO 0.11 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)
PM2.51.39 µg/m³
PM102.28 µg/m³
O384.15 µg/m³
NO25.53 µg/m³
SO22.9 µg/m³
CO160.45 µg/m³
NH30.4 µg/m³
NO0.11 µg/m³