Hourly Weather | Today Thursday, December 4, 2025
Active Weather Warnings
Dayton, Ohio
6 AM
Cloudy Weather
28°
Feels Like 21°
38
Humidity: 90%
Wind: 9 mph
UV Index: 0
7 AM
Cloudy Weather
27°
Feels Like 19°
39
Humidity: 87%
Wind: 8 mph
UV Index: 0
8 AM
Snowy Weather
28°
Feels Like 19°
42
Humidity: 87%
Wind: 9 mph
UV Index: 0
9 AM
Cloudy Weather
27°
Feels Like 18°
39
Humidity: 86%
Wind: 9 mph
UV Index: 0
10 AM
Cloudy Weather
28°
Feels Like 18°
34
Humidity: 79%
Wind: 10 mph
UV Index: 1
11 AM
Cloudy Weather
28°
Feels Like 19°
34
Humidity: 71%
Wind: 10 mph
UV Index: 1
12 PM
Cloudy Weather
28°
Feels Like 21°
24
Humidity: 65%
Wind: 9 mph
UV Index: 1
1 PM
Cloudy Weather
28°
Feels Like 25°
4
Humidity: 63%
Wind: 9 mph
UV Index: 2
2 PM
Cloudy Weather
28°
Feels Like 25°
4
Humidity: 61%
Wind: 8 mph
UV Index: 1
3 PM
Cloudy Weather
28°
Feels Like 23°
4
Humidity: 63%
Wind: 8 mph
UV Index: 1
4 PM
Cloudy Weather
27°
Feels Like 21°
4
Humidity: 67%
Wind: 7 mph
UV Index: 0
5 PM
Cloudy Weather
25°
Feels Like 18°
4
Humidity: 71%
Wind: 7 mph
UV Index: 0
6 PM
Cloudy Night
21°
Feels Like 16°
2
Humidity: 74%
Wind: 7 mph
UV Index: 0
7 PM
Cloudy Night
19°
Feels Like 14°
0
Humidity: 79%
Wind: 7 mph
UV Index: 0
8 PM
Cloudy Night
18°
Feels Like 10°
0
Humidity: 85%
Wind: 6 mph
UV Index: 0
9 PM
Cloudy Night
16°
Feels Like 10°
0
Humidity: 86%
Wind: 6 mph
UV Index: 0
10 PM
Cloudy Night
16°
Feels Like 10°
0
Humidity: 86%
Wind: 6 mph
UV Index: 0
11 PM
Cloudy Night
16°
Feels Like 10°
0
Humidity: 86%
Wind: 6 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

6 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.04 µg/m³
  • PM10: 16.59 µg/m³
  • O3: 0.023 ppm
  • NO2: 6.9 ppb
  • SO2: 2.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

7 AM
58 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.62 µg/m³
  • PM10: 17.12 µg/m³
  • O3: 0.023 ppm
  • NO2: 7.3 ppb
  • SO2: 2.3 ppb
  • CO: 0.19 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

8 AM
57 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 15.47 µg/m³
  • PM10: 16.89 µg/m³
  • O3: 0.022 ppm
  • NO2: 7.8 ppb
  • SO2: 2.2 ppb
  • CO: 0.20 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

9 AM
56 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 14.86 µg/m³
  • PM10: 16.19 µg/m³
  • O3: 0.021 ppm
  • NO2: 8.6 ppb
  • SO2: 2.1 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

10 AM
53 AQI
Moderate air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 13.41 µg/m³
  • PM10: 14.69 µg/m³
  • O3: 0.022 ppm
  • NO2: 8.6 ppb
  • SO2: 2 ppb
  • CO: 0.21 ppm

Health Recommendations:

Air quality is acceptable; some pollutants may pose a risk for a small number of unusually sensitive people.

11 AM
47 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 11.17 µg/m³
  • PM10: 12.45 µg/m³
  • O3: 0.024 ppm
  • NO2: 6.9 ppb
  • SO2: 2 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

12 PM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.61 µg/m³
  • PM10: 10.95 µg/m³
  • O3: 0.027 ppm
  • NO2: 6 ppb
  • SO2: 2 ppb
  • CO: 0.20 ppm

Health Recommendations:

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

1 PM
35 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 8.31 µg/m³
  • PM10: 9.71 µg/m³
  • O3: 0.029 ppm
  • NO2: 5.4 ppb
  • SO2: 2 ppb
  • CO: 0.19 ppm

Health Recommendations:

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

2 PM
29 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.06 µg/m³
  • PM10: 8.44 µg/m³
  • O3: 0.031 ppm
  • NO2: 4.9 ppb
  • SO2: 1.9 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

3 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 6.35 µg/m³
  • PM10: 7.78 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.1 ppb
  • SO2: 1.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

4 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.9 µg/m³
  • PM10: 7.44 µg/m³
  • O3: 0.033 ppm
  • NO2: 5.9 ppb
  • SO2: 1.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

5 PM
31 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.53 µg/m³
  • PM10: 7.21 µg/m³
  • O3: 0.033 ppm
  • NO2: 7.2 ppb
  • SO2: 1.8 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

6 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.43 µg/m³
  • PM10: 7.27 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.2 ppb
  • SO2: 1.8 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

7 PM
30 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.52 µg/m³
  • PM10: 7.52 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.5 ppb
  • SO2: 1.7 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

8 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.59 µg/m³
  • PM10: 7.68 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.4 ppb
  • SO2: 1.6 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

9 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.7 µg/m³
  • PM10: 7.83 µg/m³
  • O3: 0.032 ppm
  • NO2: 8.1 ppb
  • SO2: 1.5 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.8 µg/m³
  • PM10: 7.93 µg/m³
  • O3: 0.032 ppm
  • NO2: 7.7 ppb
  • SO2: 1.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

11 PM
29 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 5.75 µg/m³
  • PM10: 7.79 µg/m³
  • O3: 0.031 ppm
  • NO2: 7 ppb
  • SO2: 1.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

Weather Alerts and Warnings for Dayton

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued December 4 at 3:54AM EST by NWS Wilmington OH
Dec 4, 3:54 AM Dec 4, 9:00 AM
Light snow will continue to move through the region early this
morning with the passage of a cold front. Minor snow accumulations
are expected. Additionally, some very patchy freezing fog may
develop. The main impacts are expected to be reduced visibilities
and some slick spots on untreated surfaces.

Motorists should exercise caution. Plan extra time for the
Thursday morning commute.
Updated: Dec 4, 3:59 AM Source: NWS Alert