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Today | Weather | Sunday, December 14, 2025
Active Weather Warnings

Weather in Portsmouth, Virginia

08:12 AM
Now
Rainy Weather
45° F
Feels Like 34°
Precipitation 58 %
Wind 16 mph
UV Index (0 - 11+) 0
Humidity 81 %
Today
Snowy Weather
Day 43°
Night 19°
Precipitation 76 %
Wind 17 mph
UV Index (0 - 11+) 1

Portsmouth Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 14, 2024)
Cloudy Night

Day

50°

Night

43°

Wind

9 mph

Precipitation

3 %

Air Quality in Portsmouth

NOW
49 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 11.78 µg/m³
PM10 12.55 µg/m³
O3 0.028 ppm
NO2 2.1 ppb
SO2 0.4 ppb
CO 0.18 ppm
NH3 0.24 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)
PM2.5 – 11.78 µg/m³
PM10 – 12.55 µg/m³
O3 – 54.93 µg/m³
NO2 – 3.87 µg/m³
SO2 – 1.1 µg/m³
CO – 207.9 µg/m³
NH3 – 0.24 µg/m³
NO – 0 µg/m³
View Hourly Air Quality Forecast

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