Thursday Mostly sunny. Medium (50%) chance of showers and thunderstorms in the far north, most likely during this afternoon and evening. Winds E/NE 15 to 25 km/h becoming light in the middle of the day then becoming SE 15 to 25 km/h in the late afternoon. Daytime maximum temperatures in the mid to high 30s.
Friday Partly cloudy. High (70%) chance of showers in the far north, slight (30%) chance elsewhere. The chance of a thunderstorm. Winds E/SE 25 to 35 km/h.
Saturday Cloudy. Medium (60%) chance of showers in the northwest, most likely in the morning. Near zero chance of rain elsewhere. The chance of a thunderstorm. Winds E/SE 20 to 30 km/h.
Sunday Partly cloudy. Medium (50%) chance of showers in the far north, slight (20%) chance elsewhere. The chance of a thunderstorm in the west. Winds E/SE 20 to 30 km/h.
||forecast||min||max||chance of rain||rain amount||frost risk||9am||3pm|
||18||28||20%||< 1mm||Nil||ESE 21||52||E 21||23|
||21||31||50%||1-5mm||Nil||E 26||43||E 24||27|
||21||29||70%||1-5mm||Nil||E 24||52||E 25||38|
||21||31||50%||1-5mm||Nil||E 26||45||ENE 25||31|
||15||30||20%||< 1mm||Nil||E 19||57||ESE 20||25|
||21||30||70%||10-20mm||Nil||ESE 21||63||NNE 15||49|
||21||31||60%||5-10mm||Nil||ESE 24||58||ENE 18||42|
10:43 EDT A spectacular electrical storm over Perth overnight has blacked out more than 27,000 homes and businesses and caused flight delays.