Webcams in Rocky Mountain National ParkAtmospheric conditions upon Longs Summit is fickle. The weather on Longs Summit may fluctuate dramatically. It is vital to check the forecast and be prepared for any kind of climate conditions before Longs Summit. The peak is renowned for its sudden climate variations and risky weather events. Dressing in multiple layers and carrying additional equipment like rain jackets, hats, and gloves is crucial to stay protected from the elements.