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Today Hourly 7 days 30 days Air Quality
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Hourly Weather | Today › Sunday, December 14, 2025
Active Weather Warnings
Portsmouth, Virginia
9 AM
Snowy Weather
43°
Feels Like 28°
66
Humidity: 77%
Wind: 16 mph
UV Index: 0
10 AM
Cloudy Weather
39°
Feels Like 28°
40
Humidity: 76%
Wind: 17 mph
UV Index: 0
11 AM
Cloudy Weather
37°
Feels Like 25°
34
Humidity: 77%
Wind: 17 mph
UV Index: 1
12 PM
Cloudy Weather
36°
Feels Like 23°
29
Humidity: 73%
Wind: 17 mph
UV Index: 1
1 PM
Cloudy Weather
36°
Feels Like 21°
20
Humidity: 67%
Wind: 17 mph
UV Index: 1
2 PM
Cloudy Weather
36°
Feels Like 21°
20
Humidity: 60%
Wind: 17 mph
UV Index: 1
3 PM
Cloudy Weather
36°
Feels Like 21°
20
Humidity: 52%
Wind: 17 mph
UV Index: 1
4 PM
Cloudy Weather
34°
Feels Like 18°
20
Humidity: 49%
Wind: 17 mph
UV Index: 0
5 PM
Cloudy Night
30°
Feels Like 14°
20
Humidity: 47%
Wind: 17 mph
UV Index: 0
6 PM
Cloudy Night
28°
Feels Like 10°
13
Humidity: 47%
Wind: 17 mph
UV Index: 0
7 PM
Cloudy Night
25°
Feels Like 9°
0
Humidity: 46%
Wind: 17 mph
UV Index: 0
8 PM
Night
25°
Feels Like 7°
0
Humidity: 44%
Wind: 17 mph
UV Index: 0
9 PM
Night
23°
Feels Like 7°
0
Humidity: 44%
Wind: 16 mph
UV Index: 0
10 PM
Night
21°
Feels Like 3°
0
Humidity: 46%
Wind: 16 mph
UV Index: 0
11 PM
Night
21°
Feels Like 3°
0
Humidity: 47%
Wind: 16 mph
UV Index: 0

Hourly Air Quality Forecast - AQI (US EPA)

9 AM
40 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 9.53 µg/m³
  • PM10: 10.03 µg/m³
  • O3: 0.028 ppm
  • NO2: 2.4 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

10 AM
30 AQI
Good air quality Dominant pollutant: PM2.5
Details

Pollutant Concentrations:

  • PM2.5: 7.26 µg/m³
  • PM10: 7.6 µg/m³
  • O3: 0.028 ppm
  • NO2: 3.2 ppb
  • SO2: 0.4 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

11 AM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 4.9 µg/m³
  • PM10: 5.12 µg/m³
  • O3: 0.027 ppm
  • NO2: 3.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

12 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 3.11 µg/m³
  • PM10: 3.27 µg/m³
  • O3: 0.027 ppm
  • NO2: 4 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

1 PM
24 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 2.12 µg/m³
  • PM10: 2.27 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.18 ppm

Health Recommendations:

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

2 PM
25 AQI
Good air quality Dominant pollutant: O3
Details

Pollutant Concentrations:

  • PM2.5: 1.43 µg/m³
  • PM10: 1.6 µg/m³
  • O3: 0.026 ppm
  • NO2: 4.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 1.02 µg/m³
  • PM10: 1.24 µg/m³
  • O3: 0.029 ppm
  • NO2: 3.6 ppb
  • SO2: 0.2 ppb
  • CO: 0.17 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.77 µg/m³
  • PM10: 0.99 µg/m³
  • O3: 0.032 ppm
  • NO2: 3.1 ppb
  • SO2: 0.2 ppb
  • CO: 0.15 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.63 µg/m³
  • PM10: 0.82 µg/m³
  • O3: 0.037 ppm
  • NO2: 2.3 ppb
  • SO2: 0.2 ppb
  • CO: 0.14 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.56 µg/m³
  • PM10: 0.73 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.6 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.53 µg/m³
  • PM10: 0.69 µg/m³
  • O3: 0.042 ppm
  • NO2: 1.5 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.51 µg/m³
  • PM10: 0.66 µg/m³
  • O3: 0.040 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.61 µg/m³
  • O3: 0.039 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.55 µg/m³
  • O3: 0.038 ppm
  • NO2: 1.8 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

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

Pollutant Concentrations:

  • PM2.5: 0.5 µg/m³
  • PM10: 0.53 µg/m³
  • O3: 0.037 ppm
  • NO2: 1.7 ppb
  • SO2: 0.3 ppb
  • CO: 0.13 ppm

Health Recommendations:

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

Current Real-Time Air Quality Report

Weather Alerts and Warnings for Portsmouth

Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued December 14 at 3:15AM EST until December 15 at 9:00AM EST by NWS Wakefield VA
Dec 14, 7:00 PM → Dec 15, 9:00 AM
WHAT: Very cold wind chills as low as 5 above expected.

WHERE: Portions of northeast North Carolina and eastern and
southeast Virginia.

WHEN: From 7 PM this evening to 9 AM EST Monday.

IMPACTS: Very cold temperatures and wind chills could lead to
hypothermia with prolonged exposure.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Updated: Dec 14, 6:32 AM Source: NWS Alert