Las Vegas in June
Normal high 99°F, normal low 76°F (NOAA 1991-2020)
- Normal high
- 99.4°F (1991-2020)
- Normal low
- 75.8°F (1991-2020)
- Normal average temperature
- 87.6°F
- Normal precipitation
- 0.04 in, the driest month
- Record high
- 117°F on June 20, 2017 (most recent occurrence)
- Record low
- 48°F on June 6, 1993 (most recent occurrence)
- Days of 100°F or warmer
- 17.1 in a normal June
- Days of 110°F or warmer
- 1.7 in a normal June
- Nights of 80°F or warmer
- 7.6 in a normal June
- Major recurring event
- World Series of Poker (2025 series: May 27-July 16 at Horseshoe and Paris)
About
June is when summer heat arrives in full. NOAA's 1991-2020 normals for Harry Reid International Airport give an average high of 99.4°F and an average low of 75.8°F. More than half the days in a normal June, 17.1 on average, reach 100°F or hotter, and nearly two reach 110°F. The June record is 117°F, most recently on June 20, 2017.
Nights offer less relief as the month goes on. A normal June has 7.6 nights where the temperature does not fall below 80°F. The National Weather Service explains that the airport sits in the valley's urban heat island, where overnight lows can run 5 to 15 degrees warmer than outlying areas, and the Southern Nevada Health District warns that high overnight temperatures limit the body's ability to cool down.
June is the driest month of the year, with a normal of 0.04 inches of precipitation. Humidity is low, sweat evaporates quickly, and it is easy to underestimate how much water you are losing.
What to expect
The World Series of Poker fills June at the Horseshoe and Paris resorts on the Strip. In 2025 the series ran from May 27 to July 16. The 2027 dates had not been posted on wsop.com when this page was checked, so confirm there before you plan.
Beyond that, June is shaped by the heat. SNHD's advice is to limit outdoor activity to early morning or evening and to spend the hottest hours in air conditioning, so plan sightseeing around that.
The months either side
Plan the trip
Good to know
- Drink water before you feel thirsty. SNHD advises increasing fluid intake whatever your activity level and keeping bottles in the freezer to take out with you.
- Know the warning signs. SNHD lists heavy sweating, pale skin, cramps, dizziness, headache and nausea as signs of heat exhaustion; seek medical attention right away.
- Heat stroke is an emergency. The NWS says call 911 for a body temperature above 103°F, confusion or hot, red skin, move the person somewhere cooler, and do not give fluids.
- Never leave children or pets in a parked car, even with the windows open, SNHD warns.
- Spend the hottest part of the day in air conditioning. SNHD suggests malls, libraries and other public spaces, and points to clarkcountynv.gov for cooling stations on extreme heat days.
Questions about Las Vegas in June
How hot does Las Vegas get in June?
Very hot. NOAA's 1991-2020 normals for Harry Reid International Airport give an average June high of 99.4°F and low of 75.8°F. A normal June has about 17 days at 100°F or more and nearly two at 110°F or more. The record is 117°F, which the National Weather Service lists as most recently reached on June 20, 2017.
Does it cool down at night in Las Vegas in June?
Only partly. The normal June low is 75.8°F, and a normal June has 7.6 nights that stay at 80°F or warmer. The National Weather Service notes the airport often runs 5 to 15 degrees warmer at night than outlying parts of the valley because of the urban heat island effect.
How can I stay safe in the Las Vegas heat?
The Southern Nevada Health District advises drinking water before you feel thirsty, limiting alcohol, wearing lightweight light-coloured clothing and a hat, using high-SPF sunscreen, and staying in air conditioning during the hottest hours. Keep outdoor activity to early morning or evening, and never leave children or pets in a car.
What are the signs of heat exhaustion?
SNHD lists heavy sweating, pale skin, muscle cramps, tiredness and weakness, dizziness, headache, nausea or vomiting, fainting, and a fast, weak pulse. Seek medical attention right away so it does not become heat stroke. The National Weather Service says to call 911 if body temperature tops 103°F or the person becomes confused.
Does it rain in Las Vegas in June?
Almost never. June is the driest month at Harry Reid International Airport, with a normal of 0.04 inches of precipitation under NOAA's 1991-2020 normals. The National Weather Service says the summer monsoon, which brings thunderstorms and flash flooding, typically arrives in July and August.