Today | Weather | Friday, October 31, 2025

Weather in Washington, District of Columbia

09:38 AM

Now

54° F

Feels Like 46°

Precipitation 0 %

Wind 18 mph

UV Index (0 - 11+) 2

Humidity 58 %

Today

Day 63°

Night 45°

Precipitation 1 %

Wind 18 mph

UV Index (0 - 11+) 3

Washington Weather Forecast Updated

Last updated on October 31, 2025 8:22 AM

Weather Forecast History

Last Year's Weather on This Day (October 31, 2024)

Day

82°

Night

63°

Wind

8 mph

Precipitation

Air Quality in Washington

NOW

32 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 0.83 µg/m³

PM₁₀ 1.08 µg/m³

O₃ 0.034 ppm

NO₂ 1.4 ppb

SO₂ 0.2 ppb

CO 0.11 ppm

NH₃ 0.5 µg/m³

NO 0.43 µg/m³

PM_2.5 – 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)

PM_2.5 – 0.83 µg/m³

PM₁₀ – 1.08 µg/m³

O₃ – 67.67 µg/m³

NO₂ – 2.66 µg/m³

SO₂ – 0.56 µg/m³

CO – 130.45 µg/m³

NH₃ – 0.5 µg/m³

NO – 0.43 µg/m³

View Hourly Air Quality Forecast