Today | Weather | Sunday, August 9, 2026
Active Weather Warnings

Weather in West Valley City, Utah

12:56 AM
Now
Cloudy Night
81° F
Feels Like 79°
Precipitation 30 %
Wind 8 mph
Humidity 30 %
Today
Cloudy Weather
Day 100°
Night 77°
Precipitation 25 %
Wind 9 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

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.

West Valley City Weather Forecast Updated

21 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Cloudy Night

Day

81°

Night

61°

Wind

6 mph

Precipitation

0 %

Air Quality in West Valley City

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.92 µg/m³
PM10 9.09 µg/m³
O3 0.049 ppm
NO2 0.4 ppb
SO2 0 ppb
CO 0.07 ppm
NH3 0.93 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)
PM2.54.92 µg/m³
PM109.09 µg/m³
O395.39 µg/m³
NO20.71 µg/m³
SO20.11 µg/m³
CO82.91 µg/m³
NH30.93 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for West Valley City

Severe Expected Likely

Extreme Heat Warning

Extreme Heat Warning issued August 8 at 8:31PM MDT until August 10 at 12:00AM MDT by NWS Salt Lake City UT
Aug 8, 8:31 PM Aug 10, 12:00 AM
WHAT: Dangerously hot conditions with temperatures up to 100 with
little overnight relief.

WHERE: Great Salt Lake Desert and Mountains, Northern Wasatch
Front, Salt Lake Valley, and Tooele and Rush Valleys.

WHEN: Until midnight MDT Sunday Night.

IMPACTS: Heat related illnesses increase significantly during
extreme heat events.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Aug 9, 12:35 AM Source: NWS Alert