Overview
- A brief summer spike produced widespread sunshine and many places near 25–35°C on Saturday, July 25, before a frontal change arrived.
- Sunday’s frontal passage brought showers and locally strong thunderstorms that temporarily cooled temperatures and posed hazards of heavy rain, hail and gusty winds.
- The Deutscher Wetterdienst says a high‑pressure ridge named 'Olaf' will build from the southwest and drive a rapid heat rebound from Tuesday, causing widespread daytime highs of about 30–35°C and regional peaks near 37°C for several days.
- Some operational model runs and ensembles show a non‑negligible chance of temperatures exceeding 40°C in early August, but agencies and forecasters treat those long‑range signals as speculative and emphasise higher uncertainty beyond the roughly ten‑day reliable forecast window.
- The forecast matters because Germany already logged a verified 41.8°C record this summer and large areas are unusually dry, raising risks to health from heat and tropical nights, to crops and water supplies, and to wildfire and flash‑flood hazards where storms concentrate heavy rain.