The fine weather will continue on Friday and Saturday with temperatures above average for the time of year, but showers are possible on Sunday, the met office said.
Friday will be mainly fine with temperatures at 30 C inland, 28 C on the coast and 22 C in the mountains. Temperatures will edge down on Saturday, but will remain above average for the time of year.
Sunday will start off fine but clouds will form in the afternoon and are expected to lead to scattered showers and thunderstorms, mainly in the mountains and inland.
There will also be light dust.
On Monday, increased clouds may lead to scattered, light showers. Temperatures will edge down on Sunday and Monday to average for the time of year.