Notices. 1  2017-08-27: Support will be closed on Monday, September 4, 2017 for the Labor Day statutory holiday; we will reopen at 7am (Pacific) September 5. 2  2017-08-02: Introduction to Intranet Administration Webinar | September 6, 2017 | REGISTER NOW.
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.
Rating Newest Oldest. Best Answer: Las Vegas is a desert, so it can be warm in the day and cool (sometimes even cold) at night. Usually Vegas is wonderful in October/November and in April/May of each year. Even though it is a desert there can be sudden storms, but they are rare.