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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Southern Focus Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Las Vegas weather is defined by its desert location – long, scorching summers and short, mild winters. Check the live forecast above for current conditions before heading out.
What are the seasonal extremes?
Summer heat is intense, while winter nights can be surprisingly cool. Rainfall is minimal throughout the year.
- Summer (June–August): daily highs often exceed 40°C, with overnight lows around 26°C. Heatwaves can push temperatures above 45°C.
- Winter (December–February): daytime temperatures range 13–16°C, nights can drop to around 4°C. For las vegas weather december, expect cool days and chilly evenings; frost is rare but possible.
- Spring and autumn are transitional, with pleasant highs in the mid-20s to low 30s°C – ideal for outdoor activities.
- Rainfall is sparse – annual total around 100 mm, most falling in winter from passing storms.
How far ahead can you plan your trip?
The las vegas weather 14 day forecast gives a reliable outlook for general trends, though daily accuracy decreases after seven days. For longer-term planning, use the las vegas weather forecast 21 day and las vegas weather next 30 days to spot broad patterns. For shorter horizons, weather in las vegas 10 days and las vegas weather next 15 days help with timing.
- For a week-long trip, the 14-day forecast is sufficient for packing and activity planning.
- The 21-day and 30-day outlooks are best for deciding travel windows, not daily specifics.
- A las vegas weather by month breakdown shows that May and September offer moderate temperatures before the peak summer or winter.
Does Las Vegas ever get snow?
Snow in the valley is extremely rare. The last measurable snowfall was in 2008, and light flurries occur only once or twice a decade. The surrounding mountains, however, receive regular winter snow for skiing.
When is the worst heat?
July and August are the hottest, with dangerous heat indices. The las vegas weather in celsius during these months regularly tops 40°C. Avoid midday outdoors and stay hydrated; use the live forecast above to plan your day.
What is the best month for outdoor activities?
March–April and October–November offer mild temperatures, typically 20–30°C. These periods are ideal for sightseeing without the extreme heat of summer or the cool nights of winter.
For a broader picture of Australian weather, visit our Australia weather hub, and compare desert climates with tropical conditions on our Fiji weather by month page.