A relatively warm air mass is affecting the area and there will be light dust in the atmosphere until Wednesday.
Monday will be mainly fine but at intervals moderate and high cloud may lead to locally light showers which may be accompanied by thunder.
Temperatures will rise to 37 C inland, around 35 C on the south and east coasts, around 33 C on the remaining coasts and around 27 C in the mountains.
Tonight will be mainly fine but at intervals there will be increased cloud. Temperatures will fall to 22 C inland and on the south and east coasts, around 19 C on the remaining coasts and 18 C in the mountains.
On Tuesday, increased cloud at intervals may lead to isolated showers or thunderstorms, mainly in the mountains.
Wednesday and Thursday will be mainly fine but clouds that form in the afternoon are expected to lead to scattered showers or thunderstorms, mainly in the mountains and inland.
Temperatures will edge down on Tuesday but remain noticeably above average for the time of year, edging further down until Thursday, mainly inland and in the mountains but remaining above average for the time of year.