If you planning to travel to Rainbow Falls, Mammoth Lakes, 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 1:34 PM. The temperature feels like 52 with a humidity level of 30 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.9 percent. Today’s UV index is 7, don’t forget the sunscreen if you need it! Today’s winds are traveling southwest at a speed of 12 MPH. At the end of the day don’t miss the sunset at 2:09 AM.