The highest day temperature in August 2025 was 117°F. The lowest night temperature was 78°F. The average values for day and night temperatures during August were 108.6°F и 82.7°F respectivly.

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation total in August for Las Vegas is 0.4 in. This value is relatively stable throughout the year.

The average wind speed in August is 6.7 mph.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Las Vegas in August is 12.3 hours.