The name Laguna Seca is Spanish for "dry lake," reflecting the geographic history of the site — the course was constructed around a dried lake bed. Construction was funded by $1.5 million raised from local businesses and individuals after the nearby Pebble Beach Road Races were discontinued due to safety concerns. The property was deeded to the Monterey County Parks Department in 1974 and remains part of the county park system. Since January 2020, day-to-day operations have been managed by A&D Narigi Consulting, LLC under General Manager John V. Narigi; previously the non-profit Sports Car Racing Association of the Monterey Peninsula (SCRAMP) ran the facility, with revenues directed to local charities.
The track's original layout measured 1.9 miles (3.1 km). A significant expansion in 1988 added the current infield section encompassing Turns 3, 4, and 5, extending the circuit to its present length to meet FIM minimum-track-length requirements for MotoGP. Over the decades the facility underwent further modifications including pedestrian bridge relocations, gravel pit expansions, and the flattening of the hump at the top of the Rahal Straight in 2006 to better accommodate MotoGP riders.
The Corkscrew (Turns 8 and 8A) is the circuit's defining feature — a blind crest approach leads to a combined left-right sequence that plunges 59 feet, disorienting drivers on entry. Turn 2, a technical double-apex corner, is named the Andretti Hairpin in honor of Formula 1 World Champion Mario Andretti. Turn 9 carries the name Rainey Curve, honoring 500cc Grand Prix motorcycle World Champion Wayne Rainey of nearby Salinas. The straight between Turns 6 and 7 is known as the Rahal Straight, named after four-time consecutive Champ Car race winner Bobby Rahal.
The circuit's 180-foot (55 m) total elevation change creates a layout that rewards car and motorcycle setups capable of managing both high-speed stability on the descents and mechanical grip through the slower infield sections.
The first race at Laguna Seca was held on November 9, 1957, won by Pete Lovely driving a Ferrari. In the decades that followed the circuit hosted a wide array of series: the United States Road Racing Championship, Can-Am, Trans-Am, Formula 5000, IMSA GT, CART, IndyCar, the American Le Mans Series, Grand American, MotoGP, the Superbike World Championship, and MotoAmerica, among many others.
The Champ Car/CART era produced some of the circuit's most memorable moments. Alex Zanardi executed his famous last-lap pass on Bryan Herta at the Corkscrew during the 1996 CART race, diving to the inside in a move that became iconic in open-wheel racing history. The 1999 CART race was marked by tragedy when Uruguayan driver Gonzalo Rodriguez died following a crash at the end of the Rahal Straight during practice; additional runoff was subsequently installed at that location.
Champ Car held a round at Laguna Seca from 1983 through 2004, when the event moved to the San Jose Grand Prix. A proposed return in 2008 was canceled following the merger of Champ Car and IndyCar. IndyCar eventually returned in 2019 with the IndyCar Grand Prix of Monterey, which continues on the current calendar.
Formula One considered Laguna Seca as the venue for a US Grand Prix in 1989 following the end of the Detroit race, and the 1988 track improvements were made partly to attract the event. Phoenix was ultimately chosen, with Laguna Seca deemed too remote and too small to accommodate a Formula 1 crowd.
Ricardo Zonta set an unofficial lap record of 1:06.309 in a Toyota F1 car during testing in 2006. Sébastien Bourdais improved on it during 2007 Champ Car Spring Training with a 1:05.880, and Marc Gené recorded 1:05.786 in a Ferrari F2003-GA during the 2012 Ferrari Racing Days. For production cars, the McLaren Senna holds the current benchmark at 1:27.62, set by Randy Pobst in 2019. In 2018, Earl Bamber lapped in approximately 1:07 in the Porsche 919 Hybrid EVO.
Laguna Seca is one of the most recognizable circuits in racing simulation. The track appears in Polyphony Digital's Gran Turismo series beginning with the second installment, in the Forza Motorsport franchise, and in MotoGP game series. The 1999 racing game Star Wars Episode I: Racer also included Laguna Seca. Jeremy Clarkson famously visited the circuit in 2005 for the BBC's Top Gear, attempting to match his Gran Turismo 4 lap time of 1:41 in a Honda NSX and discovering that the game's physics did not fully replicate the real-world demands of the track.
The raceway hosts the Rolex Monterey Motorsports Reunion each August, historically known as the Monterey Historic Automobile Races, which has become one of the most prestigious historic racing events in the world alongside Goodwood.
The track's primary corporate sponsor is WeatherTech, which attached its name in April 2018. The previous naming rights holder was Mazda, which sponsored the facility for 17 years as Mazda Raceway Laguna Seca. A 2015 study by California State University, Monterey Bay, commissioned by SCRAMP, found the raceway generated $62.1 million to the Monterey County economy annually and $5.2 million in state and local taxes.