Western Australia has received its second heavy burst of rain for the week as a low pressure system and trough crossed the region. Showers and thunderstorms fired across Western Australia yesterday with falls beginning in Perth in the morning. Thunderstorms brought heavy rain at times with 5mm falling in only 10 minutes at 5pm. Perth gained a total of 26mm, their heaviest in half a year and more than the average for all of March. This was also Perth's heaviest March rain in three years. The heaviest rain in Western Australia was just to the northeast of Perth, with Werribee gaining 51mm, their heaviest rain in twelve years. The low pressure trough is moving further east today and weakening, leading to dry conditions for western parts of WA, including Perth. The capital is likely to have a week of dry weather with the sun becoming dominant on Sunday and Monday with the mercury reaching near 30 degrees.