Weather for Longs Peak Colorado USA timeanddatecomAtmospheric conditions on Longs Summit may be volatile. The weather at the summit of Longs Summit can change significantly. It is crucial to monitor the weather forecast and be prepared for any climate conditions before Longs Summit. The peak is noted for its sudden climate variations and dangerous storms. Choosing the suitable attire in multiple layers and carrying spare gear like rain jackets, hats, and mittens is crucial to stay sheltered against inclement weather.