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 2:15 PM. The temperature feels like 41.45 with a humidity level of 31 so dress accordingly. Cloud coverage is 3 percent with visibility at 14.9 percent. Today’s UV index is 4, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southwest at a speed of 2 MPH. At the end of the day don’t miss the sunset at 12:48 AM.