Las Vegas, NV Weather
Las Vegas hourly forecast: next 24 hours
Today's high of 89°F (32°C) is about 7°F (4°C) below the typical September high of 96°F (35°C).
Current conditions in detail
Las Vegas weather tomorrow (Thursday, September 17)
Tomorrow in Las Vegas looks sunny, with a high of 86° and an overnight low of 69°. Rain is unlikely (1% chance). Winds top out near 17 mph, and the UV index reaches 7 (high).
Las Vegas 14-day forecast
About the weather in Las Vegas
Las Vegas works on a dry budget: 4.8 inches (123 mm) of precipitation a year, spread over roughly 24 days. Temperature does the varying instead, from 57°F (14°C) on a typical December afternoon to 105°F (41°C) in July, with nights 12°C below the day.
Las Vegas weather: quick facts
- Hottest month: July - highs near 105°F (41°C)
- Coldest month: December - highs near 57°F (14°C)
- Decade extremes (2015-2024): 117°F (47°C) high · 24°F (-4°C) low
- Wettest month: January (4 rainy days) · Sunniest: June (13.7 h sun/day)
- Climate type: hot desert
- Annual swing: 26°C between the average warmest and coolest month · day to night: 12°C
- Months averaging 30°C or hotter: 5
- Average humidity: 28%
Temperatures through the year
Three of the twelve months pair mild highs with fewer than twelve wet days; the longest unbroken run is March through April. December bottoms out at 57°F (14°C) in daylight, 39°F (4°C) after dark. At its warmest, in July, Las Vegas runs to 105°F (41°C) in the afternoon and back to 82°F (28°C) by dawn. Average highs hold at or above 30°C for 5 months of the year, May through September being the unbroken run.
Rain, sun and snow
June is the brightest month at 13.7 hours of sun a day, against an annual average of 11.1 - sunnier than 97% of the 3496 cities in our dataset. Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 117°F (47°C) and the lowest daily minimum 24°F (-4°C).
Season by season
Spring (March through May)
Spring in Las Vegas brings comfortable warmth, with daytime highs averaging 80°F (26°C) and nights around 57°F (14°C); precipitation is sparse, near 24 mm (1.0 in) for the season. Daylight is generous - around 12.0 hours of sun a day.
Summer (June through August)
Summer in Las Vegas turns very hot, with daytime highs averaging 103°F (40°C) and nights around 79°F (26°C); precipitation is sparse, near 22 mm (0.9 in) for the season. Daylight is generous - around 13.2 hours of sun a day.
Fall (September through November)
Fall in Las Vegas is hot, with daytime highs averaging 82°F (28°C) and nights around 59°F (15°C); precipitation is sparse, near 23 mm (0.9 in) for the season. Daylight is generous - around 10.5 hours of sun a day.
Winter (December through February)
Winter in Las Vegas is crisp but comfortable, with daytime highs averaging 59°F (15°C) and nights around 40°F (5°C); rain comes on about 10 days over the three months.
Average temperatures in Las Vegas by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 58° | 40° | 4 | 0.9 in | 8.5 h/day | 47% |
| February | 63° | 42° | 3 | 0.6 in | 9.5 h/day | 37% |
| March | 70° | 49° | 4 | 0.6 in | 10.6 h/day | 31% |
| April | 81° | 57° | 2 | 0.2 in | 12.3 h/day | 21% |
| May | 88° | 64° | 1 | 0.2 in | 13.0 h/day | 20% |
| June | 101° | 76° | 0 | 0.1 in | 13.7 h/day | 14% |
| July | 105° | 82° | 2 | 0.3 in | 13.2 h/day | 20% |
| August | 103° | 80° | 2 | 0.5 in | 12.6 h/day | 23% |
| September | 96° | 72° | 1 | 0.3 in | 11.6 h/day | 22% |
| October | 82° | 60° | 2 | 0.2 in | 10.6 h/day | 25% |
| November | 67° | 47° | 1 | 0.3 in | 9.4 h/day | 30% |
| December | 57° | 39° | 2 | 0.5 in | 8.1 h/day | 41% |