SAN DIMAS ( —  It may technically be fall, but with a summer-like heat wave in the Southland, Raging Waters San Dimas will stay open one last weekend in a move that park officials say is unprecedented.

The water park has extended its summer season to be open one last weekend through Oct. 5 to help residents stay cool during the expected major heat wave this weekend, which is expected to bring triple-digit temperatures in areas in the San Gabriel Valley and other parts of the Southland.

READ MORE: Sheriff's Deputies Searching For Missing Rosemead Man

Officials say it will mark the first time ever that Raging Waters will be open in October.

Visitors to other theme parks in Southern California have seen some unusual incidents during the late-season heat wave in recent days.

READ MORE: Man Severely Burned In North Hollywood Fire

A Ferris wheel at the California Adventure section of Disneyland in Anaheim stalled with riders aboard for about two hours late Thursday afternoon. All the passengers were off by 6:30 p.m.

At Knott’s Berry Farm, a cockroach infestation temporarily shut down the Chicken Dinner Restaurant after the eatery had its permit suspended around 2 p.m. Thursday. Officials reopened the restaurant around 9:30 p.m., according to Knott’s officials.

MORE NEWS: Woman Attacked Near Union Station Dies From Injuries

(©2014 CBS Local Media, a division of CBS Radio Inc. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed. Wire services contributed to this report.)