What’s the weather at La Source du Doubs - Mouthe today? The current La Source du Doubs - Mouthe weather is: Cloudy, 22 C° base and 20 C° Summit, 11 km/h wind. Scroll down to Hour by Hour for an hourly La Source du Doubs - Mouthe weather forecast breakdown for a detailed La Source du Doubs - Mouthe weather and snow forecast for the next seven days.