If you planning to travel to Alpine Slide at Magic Mountain, Big Bear Lake, California, 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 12:54 PM. The temperature feels like 39.4 with a humidity level of 55 so dress accordingly. Cloud coverage is 22 percent with visibility at 13.6 percent. Today’s UV index is 11, 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 2:34 AM.