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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the NewsPrism weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for today’s conditions in Las Vegas, then plan around the desert’s sharp swings—blazing afternoons and surprisingly chilly nights are the norm.
How does Las Vegas weather vary by season?
The city sits in a hot desert climate, so summers are brutally hot and winters mild. Humidity stays low, and rain is rare.
- Summer (June–August): daytime highs routinely exceed 40 °C; nights drop to the mid-20s °C. Heat warnings are common.
- Winter (December–February): highs around 13–16 °C, lows near 4–7 °C. Frost is possible but snow is extremely rare.
- Spring and autumn offer the most comfortable conditions, with highs in the 22–32 °C range.
- Annual rainfall averages just 105 mm, most falling between July and September in short thunderstorms.
How reliable are longer-range Las Vegas forecasts?
Forecast models run out to 30 days, but accuracy declines sharply after 10–14 days. Use the 14-day and 21-day outlooks as trend indicators, not precise predictions.
- The las vegas weather 14 day forecast gives a reliable sense of temperature bands and any rain risk.
- For las vegas weather forecast 21 day or next 30 days, treat the detail as broad guidance only.
- The weather in las vegas 10 days window is the most dependable for planning day-to-day activities.
- Always check the live forecast above for the latest updates, especially during summer heatwaves.
When is the best time to visit Las Vegas for mild weather?
Late March to early May and September to early November offer the most comfortable conditions. Daytime temperatures range from 22–32 °C, perfect for outdoor activities and sightseeing.
Does Las Vegas have a rainy season?
Rainfall is sparse year-round, but the monsoon season from July to September brings brief, intense thunderstorms. These can cause localised flash flooding, especially near washes and low-lying roads.
Is it safe to travel in Las Vegas during July?
Yes, but you must take precautions. Stay indoors between 11am and 4pm, drink plenty of water, and wear a hat and sunscreen. The heat can be dangerous, especially for those with health conditions.
For UK weather, see the UK weather hub or check our 10 Day Weather Forecast UK page. Compare Las Vegas conditions with Dubai Weather or Barcelona Weather for similar desert or Mediterranean climates.