Weather in France will show a noticeable contrast tomorrow, with some areas experiencing warm, spring-like conditions while others will face cooler, autumnal weather and rain. The beginning of the week will bring a mix of sun and clouds, with differences in the weather depending on the region. In places where the sun is strong, the air will feel more like late summer, while areas with persistent clouds will feel cooler and more like autumn. Eastern regions, from the Grand Est to the Mediterranean, are expected to have more sunshine than Sunday, as the mistral wind weakens. However, morning clouds may still linger in Lorraine, Alsace, and the Saône Valley, with clearer skies likely by the afternoon. In the western part of the country, gray skies will continue due to a weak Atlantic weather system. This will bring clouds from the Pyrenees all the way to the Hauts-de-France, through the Centre-Val de Loire, the Paris basin, and into Auvergne. This cloud cover will make it difficult for the sun to shine in much of the west and central regions. Scattered rain is expected mainly in the northwest, from Brittany to the Pays de la Loire and Normandy. Along the Finistère coast, the south wind will strengthen, with gusts potentially reaching 50 km/h. Temperatures are expected to rise by about 2 °C on average compared to Sunday. Morning temperatures will be cooler in the East and near the Pyrenees, ranging from 4 to 10 °C. Afternoons will be milder, with temperatures between 18 and 23 °C from the Alsace plain to the Mediterranean, including the Toulouse area and the Basque Country. In the West, temperatures will stay lower due to clouds and rain, with 16 to 19 °C expected from the Pays de la Loire to Normandy and Brittany. Morning temperatures in the West will be milder, between 12 and 17 °C, thanks to the cloud cover. Although atmospheric pressure is relatively high, the sun will not always be visible this week as France transitions into autumn. By mid-October, the sun will be lower on the horizon, and its rays will be less effective at clearing low clouds and fog, especially in the north. Conditions in mountainous areas and the South will remain more favorable, with afternoons feeling more summery, particularly on Wednesday and Thursday. Rain in the northwest on Monday and Tuesday is expected to be isolated, with precipitation remaining rare in France until next Friday.