15-Day Weather Forecast - Las Vegas
15-day weather forecast for Las Vegas: temperatures from 27°C (81°F) to 42°C (108°F). Average daily high 38°C (100°F) over the next 15 days.
Hourly Forecast by Day
15-Day Temperature Trend
15-Day Weather Forecast
Updated just nowWeather Insight
Las Vegas's 15-day outlook ranges from a low of 27°C to a high of 42°C, with an average daytime high near 38°C. That's 2° above the long-term average high of 36°C for this time of year. It continues a recent pattern — 13 of the last 19 days with published data have run warmer than normal. Air quality is currently good (AQI 17), with no notable outdoor health concerns.
Today vs Normal
The long-term average high for today is 36°C.
13 of the last 19 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Extended Outlook for Las Vegas
Over the next 15 days, Las Vegas is forecast to see temperatures ranging from 26°C to 43°C, averaging a daily high of 38°C. The extended outlook indicates occasional showers on 2 days, with 1.2 mm total accumulation. High temperatures may pose heat stress - stay hydrated and limit sun exposure during peak afternoon hours.