Heavy rain swept through Perth on Sunday early morning as a strong cold front reached the city from the west. Falls of 26mm were recorded in the city between 10pm on Saturday and 7am Sunday morning. Westerly winds were adding a chill to the dampness, making it feel a few degrees colder. This is the city's first significant rainfall in more than 2 weeks. Shower activity is expected to continue throughout the day with a risk of thunderstorms. These showers and storms are likely to deliver more heavy downpours in the afternoon, with another 20-25mm possible. Such heavy burst of rain could cause localised flash flooding. The rainfall will be heaviest in the west, however some rain will spread inland with parts of the Central Wheat Belt districts to receive up to 10mm of rain. The start of the working week will be wet with showers only clearing by Tuesday afternoon. The cool conditions will also continue for several days and Perth residents will have to wait until Thursday before the mercury will climb into the high twenties again.