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 2:43 PM. The temperature feels like 56.2 with a humidity level of 59 so dress accordingly. Cloud coverage is 7 percent with visibility at 13.5 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south-southeast at a speed of 4 MPH. At the end of the day don’t miss the sunset at 1:03 AM.