Atmospheric conditions upon Longs Mountain can be volatile. The weather at the summit of Longs Peak can fluctuate significantly. It is essential to keep an eye on the forecast and be prepared for any kind of climate conditions hiking on Longs Summit. The mountain is recognized for its unexpected climate shifts as well as risky storms. Dressing in layers and carrying extra gear like rain jackets, hats, and gloves is essential to be safe from inclement weather.