Today | Weather | Tuesday, October 21, 2025

Weather in West Valley City, Utah

08:13 PM

Now

52° F

Feels Like 48°

Precipitation 0 %

Wind 7 mph

Humidity 44 %

Today

Day 61°

Night 37°

Precipitation 0 %

Wind 8 mph

West Valley City Weather Forecast Updated

45 minutes ago

Last updated on October 21, 2025 7:27 PM

Weather Forecast History

Last Year's Weather on This Day (October 21, 2024)

Day

70°

Night

46°

Wind

12 mph

UV Index

Precipitation

Air Quality in West Valley City

NOW

45 AQI

Good air quality Dominant pollutant: O₃

Pollutant Concentrations:

PM_2.5 4.4 µg/m³

PM₁₀ 12.1 µg/m³

O₃ 0.049 ppm

NO₂ 1.7 ppb

SO₂ 1.6 ppb

CO 0.09 ppm

NH₃ 1.18 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 – 4.4 µg/m³

PM₁₀ – 12.1 µg/m³

O₃ – 96.25 µg/m³

NO₂ – 3.15 µg/m³

SO₂ – 4.29 µg/m³

CO – 105.69 µg/m³

NH₃ – 1.18 µg/m³

NO – 0 µg/m³

View Hourly Air Quality Forecast