Today | Weather | Thursday, February 26, 2026

Weather in Portsmouth, Virginia

05:56 PM
Now
Rainy Weather
52° F
Feels Like 45°
Precipitation 68 %
Wind 8 mph
Humidity 90 %
Today
Rainy Weather
Day 54°
Night 41°
Precipitation 100 %
Wind 6 mph
UV Index (0 - 11+) 1

Portsmouth Weather Forecast Updated

6 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 26, 2025)
Cloudy Weather

Day

66°

Night

46°

Wind

6 mph

UV Index

4

Precipitation

0 %

Air Quality in Portsmouth

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.38 µg/m³
PM10 3.66 µg/m³
O3 0.042 ppm
NO2 1.5 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0.17 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)
PM2.53.38 µg/m³
PM103.66 µg/m³
O381.79 µg/m³
NO22.8 µg/m³
SO20.37 µg/m³
CO152.89 µg/m³
NH30.17 µg/m³
NO0 µg/m³