If you planning to travel to Marin Headlands Visitor Center, Mill Valley, 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 2:56 PM. The temperature feels like 52.8 with a humidity level of 80 so dress accordingly. Cloud coverage is 89 percent with visibility at 11.7 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 27 MPH. At the end of the day don’t miss the sunset at 12:54 AM.