Weak low pressure is affecting the area.
Saturday will be mainly fine but in the afternoon there will be increased cloud, mainly in the west and in the mountains..
Temperatures will rise to 33 C inland, around 30 C in the south and east coasts, around 29 C on the remaining coasts and around 26 C in the mountains.
Tonight the weather will become partly cloudy and there may isolated showers on the west and north coasts. Temperatures will fall to 18 C inland, around 22 C on the coasts and around 10 C in the mountains.
Sunday, Monday and Tuesday will be partly cloudy at intervals with scattered showers forecast, mostly in the west, north and inland.
Temperatures will drop to Sunday mainly inland and in the mountains to close to average for the time of year, remaining at the same levels on Monday and edging up on Tuesday.