List of mountain peaks of Colorado WikipediaAtmospheric conditions upon Longs Mountain may be fickle. The weather on Longs Peak could fluctuate drastically. It can be vital to monitor the forecast and be ready for any kind of weather conditions hiking on Longs Mountain. The peak is famous for its sudden weather changes and hazardous weather events. Dressing in layers and bringing spare equipment like rain coats, caps, and gloves is essential to stay safe from the elements.