If you planning to travel to Great Sand Dunes National Park and Preserve, Alamosa, Colorado, here is your 6-day travel weather forecast to make sure you have all the essentials needed during your stay. Start your day when the sunrises at 1:41 PM. The temperature feels like 34.95 with a humidity level of 43 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 16 MPH. At the end of the day don’t miss the sunset at 11:50 PM.