What is the weather like in Las Vegas in October, and what should you wear?

Warm at the start, cool by the end: highs of about 88°F on October 1, 82°F mid-month and 75°F on Halloween, with nights sliding from 66°F to 54°F. Pack summer clothes early in the month and jeans with a real jacket late.

The numbers

• Early October still averages about six days in the 90s.
• Two rain days in a typical October; sunshine 87% of daylight hours.
• Sunset moves from 6:25 p.m. to 5:46 p.m.; clocks do not change until November 1.

What to pack

• First half: summer clothes for the day and swimwear, because the dayclubs still run (TAO Beach and Palm Tree close October 11 in 2026, Encore Beach Club's day parties end October 17). A light layer for evenings after about the 10th.
• Second half: jeans by day for most people, and a real jacket for the last week, when lows reach the low 50s.
• Any date: sunscreen and a hat, because the midday sun still burns. Closed-toe shoes if Red Rock or Valley of Fire is on the list, and a layer for the car, since desert mornings run 20 degrees cooler than the afternoon.

Dress codes do not change with the season: nightclubs still turn away shorts, athletic shoes and hats on men, and restaurants are smart casual. What ambushes people is the air conditioning; a 75°F afternoon can be a 68°F dinner table.

The month's prices and busy weekends are in Las Vegas in October; clothing rules by venue in what to wear in Las Vegas.