Weather Longs Peak Campground meteoblueAtmospheric conditions upon Longs Mountain can be inconstant. The on Longs Peak can shift drastically. It's important to keep an eye on the weather forecast and be equipped for any weather conditions before Longs Mountain. The is recognized for its unexpected weather shifts and risky weather events. Wearing the right clothes in layers and carrying additional equipment like precipitation jackets, hats, and gloves is essential to be protected from inclement weather.