Longs Peak via Storm Pass and Longs Peak Trail AllTrailsWeather on Longs Peak is inconstant. The weather at the summit of Longs Summit might fluctuate drastically. It is crucial to check the weather forecast and be prepared for any weather conditions before Longs Mountain. The mountain is renowned for its sudden climate variations and hazardous storms. Choosing the suitable attire in multiple layers and bringing spare equipment like precipitation jackets, hats, and mittens is critical to be safe from the elements.