Today: Sunny in Paris, Lille and Marseille, with highs of up to 24°C

Paris and Lille: Cool at 6 a.m., mild at 3 p.m.

In Paris, the temperature is 12°C at 6 a.m. under thin clouds, then 16°C at noon and 20°C at 3 p.m. under clear skies. The day is forecast to be sunny, with temperatures ranging from 11°C to 21°C, 0 mm of rain and a 10% chance of precipitation.

In Lille, it is 9°C at 6 a.m. under thin clouds, then 10°C at 9 a.m. under clear skies, 16°C at noon, 19°C at 3 p.m. and 18°C at 6 p.m. The day is forecast to be sunny, with a high of 19°C, 0 mm of rain expected and winds of 3 m/s.

Lyon and Marseille: Cloudy in Lyon, sunny in Marseille

In Lyon, skies are cloudy at 6 a.m. and 9 a.m., with temperatures of 15°C and then 16°C; the chance of precipitation is 40% at 9 a.m. Skies turn sunny at noon with a temperature of 20°C, then clear at 3 p.m. as the temperature reaches 23°C, the day's high. The chance of precipitation is 10% at noon and 3 p.m., with 0 mm of rain forecast for the day.

In Marseille, the day is forecast to be sunny, with temperatures ranging from 15°C to 24°C. The temperature is 15°C at 6 a.m., 22°C at noon and 23°C at 3 p.m., with 0 mm of rain, a 10% chance of precipitation and winds of 3 m/s.

Air quality and indices: Favorable conditions for going out

Air quality is good in Paris, Lille and Marseille. In Lyon, it is rated as slightly polluted for the day, while the hourly index is excellent at noon, 3 p.m. and 6 p.m.

The activity index is excellent in all four cities, as is the driving index. For clothing, layers are recommended in Lille, while long sleeves are indicated in Paris, Lyon and Marseille. In Lille, the skin-care index indicates slightly dry skin and recommends moisturizing.