Atmospheric conditions upon Longs Mountain can be unpredictable. Conditions at the summit of Longs Mountain may vary dramatically. It's crucial to check the weather forecast and be equipped for any kind of weather conditions before Longs Mountain. The peak is famous for its abrupt climate variations as well as hazardous weather events. Dressing in multiple layers and carrying additional gear like precipitation jackets, hats, and mittens is essential to be protected from inclement weather.