Lisbon: Showers, at times heavy, on Friday and Saturday will clear up by Sunday and the start of the new week will at least be bright and sunny. It will also be noticeably colder, with thermometers set to plunge to highs of around 17 degrees Celsius.
South: A similar conjecture to that of Lisbon is forecast for the Algarve, where a mix of rain, cloud and sun will be in place on Saturday, before clearing up for sunny skies by Sunday. Temperatures there will be a few degrees warmer than Lisbon, with highs settling around the 20 degrees mark.
North: Northern Portugal will be wetter but not much cooler than the rest of the country. Rain is forecast to fall over much of the weekend and coming week, although those showers will at times be light, with some sun coming through, and temperatures in the mid-to-high teens.