Clear 90°F 32°C More Information:. Las Vegas NV Tonight Clear Low: 58 °F Thursday Sunny High: 77 °F Thursday Night Mostly Clear Low: 56 °F Friday Mostly Sunny High: 78 °F Friday Night Partly Cloudy Low: 58 °F Saturday Sunny High: 83 °F Saturday Night. Point Forecast: Las Vegas NV 36.17°N 115.13°W: Mobile Weather Information | En Español Last Update: 11:52 am PDT Oct 11, 2023 Forecast Valid: 1am PDT Oct 12, 2023-6pm PDT Oct 18, 2023.