Between 20 and 32 degrees: Air mass boundary divides the country
Germany is being divided by a sharp air-mass boundary, with cooler air already dominating the north while parts of the southwest could still reach 30 to 32 degrees.
The contrast is particularly striking. Northern Germany is experiencing clouds, rain and noticeably cooler conditions, with temperatures often around 20 degrees. Along the coast, strong wind gusts are also possible, while some areas could see heavy showers and thunderstorms.
Meanwhile, summer is making a brief comeback in the southwest. Temperatures could climb to between 30 and 32 degrees, with parts of the Main region also potentially reaching around 30 degrees. The result is a dramatic temperature gap between northern and southern Germany.
But the warmth comes with a growing risk of severe weather. In southern Germany, isolated strong thunderstorms are possible, bringing heavy rain, storm-force gusts and hail.
The weather will change further on Thursday as cooler air pushes deeper into the country. The south and southeast could still experience showers and thunderstorms, while Bavaria is expected to remain unsettled, with temperatures mostly between 23 and 27 degrees.
The southwest will also lose its remaining summer heat. After reaching around 30 degrees on Wednesday, temperatures there are expected to fall into the mid-to-upper 20s. The sharp divide between northern and southern Germany will gradually weaken as the cooler air spreads.
By the weekend, the cooling trend is expected to become widespread. Most of Germany will see daytime temperatures between 20 and 25 degrees, marking a significant shift away from the recent summer heat and toward more early-autumn-like conditions.