Weak, relatively low pressure is affecting the area.
Tuesday will be mainly fine. Temperatures will rise to 34 C inland, 31 C on the south and east coasts, 29 C on the west and north coasts and around 25 C in the mountains.
Tonight will be mainly fine, but locally in the west and north there will be increased cloud at intervals. Temperatures will fall to around 19 C inland, 20 C on the coast and around 11 C in the mountains.
Wednesday will be mainly fine but from the evening on, scattered showers are forecast, mainly on the coast.
Thursday will start off mainly fine but from midday on scattered showers are forecast with the possibility of thunderstorms mainly in the mountains and inland.
Friday will be mainly fine with increased local cloud at intervals.
Temperatures are expected to remain at the same levels, which are close to average for the time of year.