Lisbon: The weekend will start off overcast with some high cloud but that should have cleared up by Saturday lunchtime and the ensuing four or five days are forecast to be sunny and bright with highs in the top teens.
South: The Algarve can also look forward to a clear and bright weekend with thermometers there staying at around 21 degrees Celsius before dropping from the middle of next week.
North: With the exception of the odd bit of cloud around on Saturday and Monday the coming days in northern Portugal will also be sunny and dry, with highs peaking at 20 degrees Celsius and lows dropping to 9.