Longs Peak Weather Forecast 4345mWeather upon Longs Peak may be fickle. The at the summit of Longs Mountain can vary significantly. It's essential to check the weather forecast and be ready for any kind of weather conditions ascending Longs Mountain. The mountain is noted for its unexpected weather changes as well as risky weather events. Wearing
the right clothes in multiple layers and carrying extra gear like rain coats, hats, and mittens is critical to be safe from the elements.