What’s the weather at Mijanès - Donezan today? The current Mijanès - Donezan weather is: Cloudy, 20 C° base and 17 C° Summit, 8 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.