Hourly Weather | Today Wednesday, March 18, 2026
Hattiesburg, Mississippi
4 AM
Cloudy Night
32°
Feels Like 34°
0
Humidity: 84%
UV Index: 0
Wind: 2 mph
5 AM
Cloudy Night
30°
Feels Like 34°
0
Humidity: 78%
UV Index: 0
Wind: 2 mph
6 AM
Cloudy Night
30°
Feels Like 32°
0
Humidity: 78%
UV Index: 0
Wind: 2 mph
7 AM
Cloudy Weather
34°
Feels Like 34°
0
Humidity: 68%
UV Index: 0
Wind: 4 mph
8 AM
Cloudy Weather
34°
Feels Like 37°
0
Humidity: 74%
UV Index: 1
Wind: 4 mph
9 AM
Cloudy Weather
43°
Feels Like 46°
0
Humidity: 54%
UV Index: 2
Wind: 4 mph
10 AM
Cloudy Weather
50°
Feels Like 55°
0
Humidity: 42%
UV Index: 3
Wind: 4 mph
11 AM
Cloudy Weather
54°
Feels Like 63°
0
Humidity: 35%
UV Index: 5
Wind: 4 mph
12 PM
Cloudy Weather
57°
Feels Like 70°
0
Humidity: 30%
UV Index: 6
Wind: 4 mph
1 PM
Cloudy Weather
61°
Feels Like 73°
0
Humidity: 28%
UV Index: 7
Wind: 4 mph
2 PM
Cloudy Weather
63°
Feels Like 73°
0
Humidity: 26%
UV Index: 6
Wind: 4 mph
3 PM
Cloudy Weather
64°
Feels Like 73°
0
Humidity: 25%
UV Index: 5
Wind: 4 mph
4 PM
Cloudy Weather
66°
Feels Like 70°
0
Humidity: 24%
UV Index: 3
Wind: 6 mph
5 PM
Cloudy Weather
66°
Feels Like 66°
0
Humidity: 27%
UV Index: 2
Wind: 6 mph
6 PM
Cloudy Weather
64°
Feels Like 64°
0
Humidity: 31%
UV Index: 1
Wind: 6 mph
7 PM
Cloudy Weather
59°
Feels Like 59°
0
Humidity: 39%
UV Index: 0
Wind: 6 mph
8 PM
Cloudy Night
57°
Feels Like 55°
0
Humidity: 46%
UV Index: 0
Wind: 6 mph
9 PM
Cloudy Night
54°
Feels Like 52°
0
Humidity: 50%
UV Index: 0
Wind: 6 mph
10 PM
Cloudy Night
50°
Feels Like 48°
0
Humidity: 56%
UV Index: 0
Wind: 6 mph
11 PM
Cloudy Night
48°
Feels Like 45°
0
Humidity: 63%
UV Index: 0
Wind: 6 mph

Hourly Air Quality Forecast - AQI (US EPA)

4 AM
33 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.85 µg/m³
  • PM10: 5.55 µg/m³
  • O3: 0.036 ppm
  • NO2: 4.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

5 AM
34 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3 µg/m³
  • PM10: 4.59 µg/m³
  • O3: 0.037 ppm
  • NO2: 4 ppb
  • SO2: 0.6 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

6 AM
35 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.29 µg/m³
  • PM10: 3.78 µg/m³
  • O3: 0.038 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.16 ppm

Health Recommendations:

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

7 AM
37 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.97 µg/m³
  • PM10: 3.37 µg/m³
  • O3: 0.040 ppm
  • NO2: 3 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

8 AM
38 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.85 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.2 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

9 AM
39 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.82 µg/m³
  • PM10: 3.22 µg/m³
  • O3: 0.042 ppm
  • NO2: 3.6 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

10 AM
41 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.84 µg/m³
  • PM10: 3.23 µg/m³
  • O3: 0.044 ppm
  • NO2: 3.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

11 AM
60 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.64 µg/m³
  • PM10: 2.75 µg/m³
  • O3: 0.057 ppm
  • NO2: 1.6 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

12 PM
67 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.03 µg/m³
  • PM10: 3.09 µg/m³
  • O3: 0.059 ppm
  • NO2: 1.2 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

1 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.69 µg/m³
  • PM10: 3.75 µg/m³
  • O3: 0.062 ppm
  • NO2: 0.9 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

2 PM
83 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.22 µg/m³
  • PM10: 4.24 µg/m³
  • O3: 0.065 ppm
  • NO2: 0.8 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

3 PM
86 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.47 µg/m³
  • PM10: 4.45 µg/m³
  • O3: 0.066 ppm
  • NO2: 0.7 ppb
  • SO2: 0.8 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

4 PM
87 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.5 µg/m³
  • PM10: 4.44 µg/m³
  • O3: 0.066 ppm
  • NO2: 0.7 ppb
  • SO2: 0.7 ppb
  • CO: 0.12 ppm

Health Recommendations:

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

5 PM
83 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.52 µg/m³
  • PM10: 4.49 µg/m³
  • O3: 0.065 ppm
  • NO2: 1.1 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

6 PM
74 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.56 µg/m³
  • PM10: 4.6 µg/m³
  • O3: 0.062 ppm
  • NO2: 2 ppb
  • SO2: 0.7 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

7 PM
65 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.48 µg/m³
  • PM10: 4.6 µg/m³
  • O3: 0.059 ppm
  • NO2: 2.9 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

8 PM
57 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.32 µg/m³
  • PM10: 4.53 µg/m³
  • O3: 0.056 ppm
  • NO2: 3.3 ppb
  • SO2: 0.7 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

9 PM
51 AQI
Moderate air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.23 µg/m³
  • PM10: 4.57 µg/m³
  • O3: 0.054 ppm
  • NO2: 3.4 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.2 µg/m³
  • PM10: 4.65 µg/m³
  • O3: 0.053 ppm
  • NO2: 3.5 ppb
  • SO2: 0.6 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 3.14 µg/m³
  • PM10: 4.7 µg/m³
  • O3: 0.051 ppm
  • NO2: 3.4 ppb
  • SO2: 0.5 ppb
  • CO: 0.15 ppm

Health Recommendations:

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