Today | Weather | Wednesday, April 8, 2026

Weather in Portsmouth, Virginia

12:43 PM
Now
Cloudy Weather
50° F
Feels Like 50°
Precipitation 0 %
Wind 15 mph
UV Index (0 - 11+) 8
Humidity 48 %
Today
Cloudy Weather
Day 52°
Night 43°
Precipitation 3 %
Wind 14 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Portsmouth Weather Forecast Updated

43 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 8, 2025)
Partly Sunny with Showers

Day

55°

Night

39°

Wind

11 mph

UV Index

5

Precipitation

49 %

Air Quality in Portsmouth

NOW
61 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.79 µg/m³
PM10 4.06 µg/m³
O3 0.057 ppm
NO2 0.4 ppb
SO2 0.3 ppb
CO 0.13 ppm
NH3 0.57 µg/m³
NO 0.17 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.51.79 µg/m³
PM104.06 µg/m³
O3112.74 µg/m³
NO20.74 µg/m³
SO20.77 µg/m³
CO148.92 µg/m³
NH30.57 µg/m³
NO0.17 µg/m³