What is the current water temperature at Lake Mead?

Current water temperature for Lake Mead is shown in the live forecast above. When the USGS sensor is reporting, the value comes from the live monitoring station; otherwise we estimate from recent and forecast air-temperature trends weighted by the lake's depth.

Where is Lake Mead located?

Lake Mead is in Nevada (Clark County), with public access near Boulder City, Henderson, Las Vegas. Surface area is 158,084 acres.

How deep is Lake Mead?

Lake Mead's maximum depth is 532 feet. Deeper lakes carry more thermal inertia and warm more slowly through summer; shallower lakes track the air temperature faster.

Nevada · Clark County

Lake Mead

Boulder City · Henderson · Las Vegas

Loading live conditions for Lake Mead…

Surface area158,084acres

Max depth532feet

CountyClark

Data sourceUSGS liveReal-time sensor

Things to do

Tours & activities on Lake Mead

Boat cruises, fishing trips, kayak rentals, and guided adventures from local operators.

Browse activities on Viator

Places to stay

Lake houses & rentals

Vacation rentals right on the water.

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We may earn a commission on bookings made through these links.

"The Colorado River's biggest reservoir — formed by Hoover Dam in 1936 and the keystone of the Vegas-area water and recreation economy. Has shrunk dramatically in the 2000s due to Colorado River drought, with the "bathtub ring" climbing year after year. Bookings still strong for houseboat and fishing trips."

Seasonal pattern

When does Lake Mead warm up?

Lake Mead is deep (max depth 532ft) and carries significant thermal inertia, so it warms slowly — surface temperatures typically don't reach comfortable swimming range until late June or early July. Spring-fed or alpine lakes stay cooler all summer. The live forecast above shows current conditions.

Field notes

About Lake Mead

Drought has dropped water level over 150ft below historic full pool
Live USGS sensors at multiple platforms (when reporting)
247 sq mi at full pool — Vegas's primary recreation lake
30 minutes from the Strip; popular winter-warmth getaway

Surface area: 158,084 acres
Max depth: 532 ft
County: Clark
Water data: Live USGS sensor
USGS site: 360310114172331