Overview

• Temperatures in northern France are forecasted to drop by 10–15°C between Friday and Sunday, with Paris and Strasbourg experiencing swings of 13°C and 15°C, respectively.
• A polar air mass descending from northern Europe is driving the abrupt temperature drop, marking a sharp contrast to last week's unseasonably warm weather.
• Saturday and Sunday will see widespread rain and locally violent thunderstorms, with the most severe storms expected in the South-West and parts of the North-East.
• The cooling will be more pronounced in northern France, while southern regions will experience a milder drop, with temperatures remaining closer to seasonal norms.
• Unsettled weather is expected to persist into next week, featuring regular rain, highs of 12–15°C in the north, and the possibility of morning frosts in some areas.