Overview
- A brief summer return produced highs into the low 30s on Saturday before a frontal zone brought showers and locally strong to severe thunderstorms on Sunday.
- The Deutscher Wetterdienst says hot air will spread from Tuesday into Wednesday with typical daytime highs of 30–35°C and local peaks near 37°C, and nights remaining warmer than normal.
- Several weather models and single runs (GFS, ECMWF/IFS, AIFS and ensembles) have since produced scenarios with multi‑day peaks above 40°C in early August, but national forecasters stress those long‑range extremes are uncertain.
- Forecasters and meteorologists warn a multi‑day sequence of very hot days and warm nights would raise wildfire risk, stress water and ecosystems, and strain transport and energy systems.
- Authorities urge people to prepare now by keeping vulnerable people cool and hydrated, checking local warnings for thunderstorm hazards this weekend, and monitoring official updates as the heat forecast evolves.