Overview
- A frontal system on Sunday brought showers and local strong thunderstorms that cooled many regions after Saturday’s highs around 30–35 °C.
- The Deutscher Wetterdienst (DWD) now expects high pressure called 'Olaf' to push hot air from the southwest beginning Tuesday with widespread 30–37 °C and many areas above 35 °C by midweek.
- Several operational and ensemble model runs for early August show possible spikes into the high 30s and low 40s, with some outliers near 42–43 °C, but those values are not official forecasts and carry substantial uncertainty.
- Authorities and meteorologists urge concrete precautions: drink more water, avoid midday exertion, check on vulnerable people, prepare energy and transport systems, and watch for rising forest‑fire danger where soils are dry.
- Context raises concern: Germany set a new national record of 41.8 °C on 27 June 2026 and large parts of the country remain unusually dry, which would amplify health, ecological and infrastructure impacts if prolonged extreme heat occurs.