Overview
- Germany’s weather service (DWD) forecasts unusually mild, sunny conditions on Wednesday and Thursday with local highs near 20°C, especially in the Upper Rhine valley and along the Alpine edge.
- The week starts mostly grey with fog, low cloud and patches of drizzle, with many places only gradually brightening and daytime highs generally around 8 to 13°C.
- Despite the mild afternoons, forecasters warn that clear nights can still bring frost and slick spots, particularly in southern inland valleys.
- ECMWF guidance signals a sharp drop in temperatures from Friday with a polar air surge and possible regional snow in the Harz, Sauerland and parts of the Alps, while the GFS model points to a cooler turn that is less extreme and wetter at low levels.
- Meteorologists trace the warm spell to subtropical air advecting from North Africa and note that such late-season anomalies have become more frequent, though the severity of any weekend cooldown remains uncertain.