Atmospheric conditions on Longs Peak can be unpredictable. The weather atop Longs Summit may alter significantly. It can be crucial to keep an eye on the weather forecast and be ready for any climate conditions hiking on Longs Summit. The mountain is renowned for its unexpected weather changes as well as dangerous storms. Wearing the right clothes in multiple layers and carrying extra equipment like precipitation jackets, hats, and gloves is critical to be protected from the elements.