A 14-month-old boy has been rescued from a hot car in Perth’s northeast after a parent “forgot” he was inside.

Officers had to smash a window to free the baby just after 9.30am (local time) on Monday at a shopping centre car park in Ellenbrook.

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The temperature in Perth at the time was about 36C.

Although the child was crying and sweating, he did not need hospitalisation and another family member arrived soon after to support the parent and boy.

“It was established the parent had genuinely forgotten the child was left in the vehicle at the time and no charges will be preferred by police,” a spokeswoman said.

The temperature in Perth is forecast to reach 41C on Monday, with a severe fire danger advice and a total fire ban in place for parts of the city and regional WA.