Warm weather will last until Wednesday, and rain returns on Thursday, forecasters say. Friday will be 4–5 degrees cooler during the day.

This story follows our earlier report on fog on Saturday morning and the warm-up until Wednesday.

Tomorrow on the Black Sea coast, clouds will often be thick but no rain is expected. Highs will be 16C to 18C, and the sea will be rough, at 2–3 on the scale.

Tonight and tomorrow, skies across Bulgaria will be changeable and often cloudy, with almost no rain. Lows will be 2C to 7C and highs 13C to 18C. The wind will blow from the west-northwest and will be moderate at most. Visibility may be poor in the morning in places in the basins of western Bulgaria.

In the mountains, the northwest wind will be moderate to strong. Clouds will often be thick, with almost no rain.

Monday will be very cloudy in most of Bulgaria, but the cloud will thin out in the west and the sky there will be mostly sunny. Light showers are possible in places in the northeast and in the mountains. Some plains and basins will have fog before noon.

Tuesday will be mostly sunny, the wind will turn to the south-southeast and temperatures will rise. On Wednesday the wind will blow from the south-southwest, up to moderate, but in eastern Bulgaria and north of the Balkan Mountains it will pick up to strong for a time.

Thursday will be mostly cloudy, with rain, but still warm. Friday will bring heavier rain to more places.

In Europe, heavy rain is expected in eastern Spain and the western Mediterranean. It will also rain, at times hard, in southeast France, Switzerland, northwest Italy and parts of Belgium and the Netherlands. The British Isles and most of Scandinavia will be mostly sunny and fairly cool.

The western and southern Balkans will be mostly sunny. In the central and eastern parts, skies will be changeable and often cloudy, and northern Romania will see rain.