Lake Mead
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Lake Mead Weather in August

Lake Mead in August sees extremely high daytime temperatures of 41°C (106°F) and nighttime lows of 26°C (79°F). With just 14 mm (0.6 in) of rainfall expected, it's a dry month overall.

Rainfall in Lake Mead in August

Typically around 4 days of rainfall are expected, averaging 14 mm (0.6 in) for the month. When rain does fall, showers tend to be light and brief. Most days will be dry.

Temperature in Lake Mead in August

Daytime highs in Lake Mead in August reach 41°C (106°F), with nights around 26°C (79°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 26°C (79°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.

Sunshine in Lake Mead in August

Expect a lot of sunshine this month, with about 364 hours of sun. These sunny conditions add to the overall experience.

August in Lake Mead has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.

Lake Mead Temperature in August

Min Temperature
26°C (79°F)
Max Temperature
41°C (106°F)
Chance of Rain
13%
Precipitation
14 mm (0.6 in)
Rainy days
4 days
Humidity
26% *
Sunshine
364 hours *
Percentage Sunshine
88% *
* Data from: Las Vegas, the United States of America (72 KM, 44 Miles).

Lake Mead Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Lake Mead - and find the best time to visit.

Daily Historical Temperatures

50-year average (1976-2025)

Based on our historical records, temperatures in Lake Mead typically stay consistent throughout August, with daily highs averaging around 41°C (106°F). Nights are warm, with lows typically ranging from 25°C (77°F) to 27°C (81°F).

Average temperatures in August

Daily Historical Precipitation

50-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in August

Historical weather records for Lake Mead in August

Browse day-by-day weather records for Lake Mead spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Lake Mead historical weather extremes in August

According to our 50 years of weather records for Lake Mead, the following extremes were recorded between 1976 and 2026.

  • The warmest day in August was on August 1, 2026, with a maximum of 46°C (115°F).
  • The lowest overnight temperature recorded in August was 17°C (63°F) (August 13, 1988).

Best Places in the United States of America in August

Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in August →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Lake Mead in August

Hot weather in August means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. With minimal rainfall expected, you can leave the rain gear at home. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Lake Mead in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Swimming
    10/10
  • Camping
    9/10

Lake Mead 3-Day Forecast

Popular in August

Where to go in August - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.