Rain has started to fall in Perth, with showers sweeping across the metropolitan area as a wet and windy day gets underway.

The Bureau of Meteorology has forecast a 75 per cent chance of at least 5mm of rain on Monday, with up to 10mm possible.

The city is expected to reach a top of 20C, with north to north-westerly winds of 25km/h to 35km/h turning westerly around the middle of the day.

The showers should become less likely through the late afternoon and into the evening.

Tuesday will be mostly cloudy with a slight chance of a shower, most likely in the evening, and a top of 19C after a minimum of 10C.

The wet weather will linger into Wednesday, with a medium chance of showers and temperatures ranging from a low of 10C to a high of 20C.

Thursday starts with a cooler morning of 7C, with a partly cloudy day and only a slight chance of a shower and a top of 21C.

Conditions turn mostly sunny on Friday with a warmer maximum of 23C.

The weekend could bring more rain, with a medium chance of showers on Saturday and a minimum of 10C and a maximum of 23C.

A shower or two is forecast for Sunday with the mercury reaching 20C.

PERTH WEATHER FORECAST

• Monday: Showers, Max 20 ☔️
• Tuesday: Cloudy, 10-19 ☁️
• Wednesday: Shower or two, 10-20 ☔️
• Thursday: Partly cloudy, 7-21 ⛅️
• Friday: Mostly sunny, 8-23 ⛅️
• Saturday: Shower or two, 10-23 ☔️
• Sunday: Shower or two, 11-20 ☔️

Forecast sourced from the Bureau of Meteorology.