Alps: one wet day, then a warm dry spell

Chamonix takes nearly 19mm of rain today before the front clears. From Wednesday it turns dry and warm, with valley highs climbing toward 30 degrees by midweek. Higher up at Zermatt it stays cooler, around 19 degrees. Pack for both. A packable waterproof covers this morning; a light merino base layer carries you through the warm afternoons that follow.