September 2026 weather forecast for the USA and Canada using ECMWF EC46. See where extreme heat continues, where fall arrives first, and the wettest cities.
September 2026 weather forecast for Europe using ECMWF EC46 via Open-Meteo. See where 30°C heat may continue, where autumn arrives first, and which cities face the wettest weather.
Europe Weather Forecast September 2026: Heat, Rain, Early Autumn and Best Travel Weather Read Post »
As the calendar heads towards the final week of September 2025, Europe may be in for an extraordinary twist in its weather pattern. Far from the usual gradual cooling into autumn, a surge of tropical air is expected to sweep across large parts of the continent between September 20 and 24. Forecasts from leading models, including ECMWF, show an unseasonably strong pulse of warmth moving from the south into Central and Eastern Europe – Indian Summer.
Europe Braces for a Tropical Heatwave: Could September End with an Indian Summer Read Post »
