Mosier is a destination best enjoyed during the warmer months, ideally from late spring through early fall, for outdoor activities and pleasant weather.From May to September, the weather in Mosier is typically sunny and dry, with average temperatures ranging from the mid-60s to high 80s Fahrenheit. This period is superb for enjoying the Mosier Twin Tunnels Trail, a paved path accessible to walkers and cyclists that offers scenic views of the Columbia River Gorge. During these months, you'll also find local fruit stands open, offering fresh produce from the surrounding orchards.Couples looking for an active yet relaxing getaway will particularly appreciate this timeframe. The comfortable temperatures are ideal for cycling the Columbia River Gorge Historic Highway, exploring local wineries, or simply enjoying the outdoor seating at the town's eateries.