Heat stress in West Valley City
Salt Lake Valley heat: hot, dry, sun-soaked afternoons with sharp drops in temperature overnight.
Light precautions for intense activity. Keep water handy.
Wet-bulb globe temperature via the Liljegren (2008) method. This page is cached and refreshes in the background, so the live badge below can be a few minutes ahead of it.
View West Valley City on the live mapReading heat stress in West Valley City
Wet-bulb globe temperature (WBGT) is the heat measure that actually tracks danger to the body. Unlike the plain air temperature on your phone, it folds in humidity, wind, and direct sun: the factors that decide whether your sweat can still cool you. It’s the standard the military, athletic associations, and occupational-safety bodies use to call when outdoor activity is no longer safe.
That matters in West Valley City because salt Lake Valley heat: hot, dry, sun-soaked afternoons with sharp drops in temperature overnight. The number above is the live outdoor WBGT for the city right now; tap through to the live map to inspect any neighborhood, scrub the forecast hour by hour, and see the 7-day outlook.
How hot West Valley City usually gets
Across 2015–2024, West Valley City averaged a 89°F daily high in summer: 57th hottest of the 174 metros we track, and July is typically the warmest month.
Most of the heat here sits below the extremes: around 55 days a year top 90°F, and only about 4 reach 100°F.
The air is dry, averaging about 31% through summer, so sweat works and the danger is sun load and raw heat rather than mugginess.
A bad day runs well past a normal one, with 104°F recorded against a 89°F summer average.
Daily high temperatures and humidity from ERA5 reanalysis, 2015–2024 (hottest day in the sample: 2024-07-11). These are climate averages for context: the reading at the top of this page is the live one.
For school sports, see our Utah heat policy page.
Heat in West Valley City: common questions
How hot does it usually get in West Valley City?
Across 2015–2024, West Valley City averaged a 89°F daily high through summer, with about 55 days a year at or above 90°F and 4 at or above 100°F. July is typically the hottest month, and the hottest day in that sample reached 104°F. Figures are from ERA5 daily reanalysis.
When is the hottest time of year in West Valley City?
July has the highest average daily high in West Valley City. Summer humidity averages only about 31%, so sweat evaporates efficiently: the danger here is sun and raw heat rather than mugginess. Use the forecast on this page to plan around the specific days that matter.
What is the WBGT in West Valley City right now?
The reading at the top of this page is the current wet-bulb globe temperature for West Valley City, Utah, computed from live weather by the Liljegren (2008) method and labeled with how recently it updated. For an exact reading at your own neighborhood, plus an hour-by-hour forecast, open the live map.
Why is WBGT more useful than the temperature for West Valley City?
Air temperature ignores humidity, wind, and sun: the things that decide whether heat is dangerous. West Valley City's climate (salt Lake Valley heat: hot, dry, sun-soaked afternoons with sharp drops in temperature overnight.) is exactly why a single "feels-like" or thermometer reading can understate the real risk. WBGT captures all of it in one number.
When is heat most dangerous in West Valley City?
July is the peak month in West Valley City, and within a day heat stress is highest in the early-to-mid afternoon when sun load is greatest. About 55 days a year reach 90°F, so most of the risk sits in a handful of afternoons rather than across the whole season. Use the forecast on this page to find the window that works.
Put West Valley City’s live heat stress on your site
A self-updating WBGT badge for schools, teams, camps, and local sites: it always shows the current reading and links back here.
<iframe src="https://wetbulbtracker.com/embed/west-valley-city-ut" width="340" height="150" style="border:0" title="Live WBGT: West Valley City, UT" loading="lazy"></iframe>Paste it into any website. The badge updates itself and links back here. Add ?theme=light for light sites.