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The weather varies greatly throughout the year in Las Vegas â the winter months are dry and cold with short days and long nights, whilst the summer months are blisteringly hot with long days and short nights. Las Vegas is located in Nevada in the Mojave Desert.
If you happen to be out at 5:00am on a few winter days it could be about 30 degrees. Generally daytime highs are like fall days in most of the country. Average Weather for Las Vegas, NV - Temperature and Precipitation. But it does get windy, and wind chill then becomes a factor. I have several winter coats that I might get to wear once or twice a year. Same thing with sweat shirts.