Las Vegas, Nevada weather in May

Averages from 2021–2025 (155 days of record).

Average high: 90°F
Average low: 65°F
Rainy days: ~1 per month
Total precipitation: 0.2 in
Warmest recorded: 107°F
Coldest recorded: 50°F

Expect May days in Las Vegas, Nevada to top out around 90°F and cool to about 65°F overnight, with roughly 1 days of measurable rain across the month. In recent years May has ranged from 50°F to 107°F.

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Current Las Vegas, Nevada forecast → · Historical data by Open-Meteo (ERA5).