Unseasonably Mild Weather Continues Across France, with Desert Dust Expected

While astronomical spring officially begins on March 20, 2026, France is experiencing unusually mild temperatures that belie the late winter season. Forecasts indicate this trend will continue throughout the week, with a potential for desert dust to affect air quality.

Weather Forecasts for Haute-Savoie, Savoie, and Ain

Weather France reports that mild conditions will persist across France for the coming week, with a slight temperature drop anticipated towards the weekend. Despite this, temperatures are expected to remain above seasonal averages.

Desert Dust

By Thursday, desert dust is expected to spread across northern France, potentially diminishing visibility. Météo France indicates the dust concentration could be significant enough to haze the sky.

Haute-Savoie

In Annecy, the warmest day is forecast for Thursday, March 5, with partly cloudy skies and temperatures ranging from 3°C to 17°C. Thonon-les-Bains will enjoy clear skies on Tuesday and Wednesday, with lows of 3°C and highs of 14°C. Thursday may bring some cloud cover, but temperatures will remain mild.

Sallanches will experience sunny weather, though mornings will be cool, with temperatures between -1°C and 0°C. Wednesday will be particularly warm, reaching 18°C, with temperatures potentially climbing to 20°C on Thursday.

Savoie

Chambéry in Savoie is expected to have mild and sunny weather, with a high of 18°C on Thursday and a low of 3°C on Tuesday, and Wednesday. Albertville forecasts highs of 19°C on Tuesday, 20°C on Wednesday, and 21°C on Thursday, accompanied by a light wind of 15 km/h on Tuesday, decreasing to 10 km/h on Wednesday.

Tignes will remain sunny, but temperatures will stay below freezing, ranging from -9°C to 4°C on Tuesday and dropping to -10°C on Thursday.

Ain

Bellegarde-sur-Valserine in the Ain department will experience overall mild temperatures for March, with highs of 18°C expected on Tuesday and Thursday. Gex will see similar forecasts, with temperatures fluctuating slightly but remaining mild, reaching 16°C on Thursday. Nantua is also predicted to have spring-like weather, with highs of 18°C on Wednesday and 19°C on Thursday.