What’s the weather at Mijanès - Donezan today? The current Mijanès - Donezan weather is: Sunny, 21 C° base and 18 C° Summit, 17 km/h wind. Scroll down to Hour by Hour for an hourly Mijanès - Donezan weather forecast breakdown for a detailed Mijanès - Donezan weather and snow forecast for the next seven days.