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 3:12 PM. The temperature feels like 53.8 with a humidity level of 85 so dress accordingly. Cloud coverage is 23 percent with visibility at 15 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling east-southeast at a speed of 6 MPH. At the end of the day don’t miss the sunset at 12:50 AM.