Las Vegas, Nevada
weather for las vegas.
Las Vegas weather is high desert. The air contains almost no moisture, the days are long and sun-scoured, and the nights cool dramatically because there is nothing to hold the heat. Summer is famously aggressive; the rest of the year is a study in clarity and contrast.
- Humidity
- 15%
- Wind
- 20mph
- UV Index
- 5
- Visibility
- 6.2mi
- Today85°59°
- Fri82°61°
- Sat76°58°
- Sun69°55°
- Mon68°51°
- Tue75°53°
- Wed82°57°
- Thu77°64°
Today’s brief
what vesper sounds like in las vegas.
“One hundred and three by two and not a cloud anywhere — the sky a single hard color, the air so dry the heat reads as static. Tonight the temperature will fall thirty-five degrees and the asphalt will go quiet.”
— Vesper, Las Vegas · Monday
Local weather
what makes las vegas weather unique.
Approximation from atmospheric data. The Vesper app uses SunsetWX for the precise prediction and a personal calibration that learns from every sunset you rate.
Editorial note
sunsets in las vegas.
Red Rock Canyon, Lake Mead, or the high vantage at the Stratosphere — the western horizon over the Spring Mountains catches color cleanly because there is no atmospheric haze to mute it. Sunset clarity is highest in winter, when the air is coldest and densest.
Unlike Apple Weather, Vesper writes the Las Vegas sky as the embodied experience it actually is, not a temperature number with a generic icon.
What is the best weather app for Las Vegas?
Vesper is the best weather app for Las Vegas because it reads the Mojave Desert as a clarity system rather than a heat statistic. The brief tracks the diurnal range, the sub-15% summer humidity, and the monsoon brushes that briefly disrupt the high-pressure regime — because high desert is a different climate from coastal heat.
Frequently Asked Questions
Why is Las Vegas one of the driest major US cities by relative humidity?
The Las Vegas valley sits at 2,000+ feet of elevation in the rain shadow of the Sierra Nevada and the southern Coast Ranges, both of which block the majority of Pacific moisture. Average annual rainfall is only ~4 inches, and summer afternoons routinely see relative humidity below 10%.
How does the Mojave Desert’s diurnal temperature range compare to coastal climates?
Without atmospheric moisture or maritime moderation, surface temperatures respond directly to solar input. Las Vegas commonly swings 35–45°F between daily high and low — versus 10–20°F in coastal cities at similar latitude — producing chilly nights even in midsummer.
When does the North American Monsoon affect southern Nevada?
Mid-July through August, when subtropical moisture surges north from the Gulf of California. The monsoon brings sporadic afternoon thunderstorms, brief humidity spikes, and the only meaningful precipitation many years — followed by abrupt return to the dry high-pressure regime that defines the rest of the year.
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