Las Vegas heat wave brought forecast high of 114°F and elevated wildfire risk

Las Vegas was about 10 degrees above normal during a Western heat wave that brought a forecast high near 114°F on Sunday, Aug. 2, according to Associated Press reporting that cited the National Weather Service.

The heat was part of an Aug. 1-3 event across the West. The National Weather Service identified dangerous heat in the Las Vegas area and an extreme-heat warning covering the Las Vegas Valley, including Las Vegas, North Las Vegas, Henderson and Southern Clark County.

Heat and limited overnight relief

The National Weather Service said anomalously warm overnight low temperatures would limit relief from daytime heat. That distinction matters because a high-temperature forecast does not describe the full exposure: persistently warm nights can reduce the break from hot daytime conditions.

The 114°F figure was a forecast for Aug. 2, not a reported final temperature. The available reporting does not establish that Las Vegas set a temperature record during this heat wave.

For context, the source packet lists Las Vegas’ August record at 116°F and its all-time record at 120°F, recorded in July 2024. Those historical figures provide comparison points but do not by themselves indicate whether any record was approached or exceeded during the Aug. 1-3 event.

Dry conditions raise fire-weather concerns

Very dry conditions accompanying the heat increased wildfire risk across parts of the West, the Associated Press reported. Dry fuels and very low humidity can increase the potential for wildfire spread. The available sources establish heightened fire-weather concern, but do not document a specific wildfire within Las Vegas.

Wildfire risk also has potential air-quality implications for Southern Nevada. On March 31, the Clark County Department of Environment and Sustainability issued its seasonal advisory for ozone and wildfire smoke. The county said smoke from Western wildfires can increase particulate pollution and contribute to ground-level ozone formation.

The county identifies children, older adults, and people with respiratory or cardiac conditions as especially sensitive to ozone and wildfire-smoke pollution. Its seasonal advisory is not evidence that air quality was unhealthy in Clark County during the heat event; it describes the risks when smoke or elevated ozone are present.

What remains to be confirmed

The National Weather Service forecast material in the source packet was last updated July 28. As a result, the packet supports the heat forecast and the warning’s listed coverage, but it does not provide a confirmed Aug. 3 warning status, warning issue time or expiration time. No heat-related injury or death total was identified in the available sources.