Las Vegas Sizzles Under Clear Skies with 38 °C High

Lead Las Vegas recorded a daytime high of 38 °C and an overnight low of 24 °C on September 6, 2025, under unbroken sunshine and dry conditions, driven by a persistent late-summer heat dome.

Nut Graf The continued heat underscores the city’s typical September climate, where precipitation is virtually nonexistent and temperatures remain significantly above seasonal averages, heightening concerns for outdoor workers and vulnerable populations.

Weather Overview Sunny Skies Throughout the Day Morning temperatures started near 24 °C before quickly climbing; skies remained cloud-free from sunrise through sunset.

Peak Afternoon Heat The heat dome intensified by midday, pushing thermometers to 38 °C, about 4 °C above September’s long-term daily average maximum of 34 °C.

No Rain, Low Humidity Las Vegas saw zero precipitation and relative humidity stayed below 25%, maintaining arid conditions characteristic of the Sonoran Desert region throughout September.

Evening Cool-Down After sunset, temperatures dipped back to 24 °C, offering only modest relief and prolonging heat stress risks into the night.

Impacts and Outlook Health Precautions Urged Local health officials remind residents to stay hydrated, limit outdoor exposure during peak hours, and check on at-risk individuals, as high overnight lows reduce natural recovery time.

Short-Term Forecast The clear, hot pattern is expected to persist over the next several days, with daytime highs remaining near 37 °C and minimal chance of rainfall, reinforcing the need for continued heat advisories.