Today | Weather | Friday, October 31, 2025

Weather in Las Vegas, Nevada

11:51 PM

Now

66° F

Feels Like 63°

Precipitation 0 %

Wind 6 mph

Humidity 21 %

Today

Day 84°

Night 55°

Precipitation 0 %

Wind 6 mph

UV Index (0 - 11+) 4

Las Vegas Weather Forecast Updated

32 minutes ago

Last updated on October 31, 2025 11:19 PM

Weather Forecast History

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

Day

70°

Night

48°

Wind

7 mph

UV Index

Precipitation

Air Quality in Las Vegas

NOW

43 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 10.16 µg/m³

PM₁₀ 39.9 µg/m³

O₃ 0.047 ppm

NO₂ 2.6 ppb

SO₂ 0.2 ppb

CO 0.09 ppm

NH₃ 2.43 µg/m³

NO 0 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 – 10.16 µg/m³

PM₁₀ – 39.9 µg/m³

O₃ – 91.96 µg/m³

NO₂ – 4.83 µg/m³

SO₂ – 0.58 µg/m³

CO – 100.41 µg/m³

NH₃ – 2.43 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast