The high-pressure system will continue to dominate the weather, although the lower layers of the atmosphere will become more humid from the south.
In the afternoon, the sun often shines, with a few harmless clouds over the mountains.
Maximum temperatures will range from 23° to 26°.
Partly sunny and mild autumn weather
Thursday will be sunny at times. Many valleys will initially have low clouds, and some extensive patches of cloud will drift through as the day progresses.
Friday will bring a mix of sun and clouds.
On Saturday, sunshine will predominate in the south, whilst thicker clouds will appear in the north-western parts of the region as the day progresses.
On Sunday, it will be mainly sunny with a few harmless clouds. It will remain too warm for the time of year.
The high-pressure system will continue to dominate the weather, although the lower layers of the atmosphere will become more humid from the south.