If you planning to travel to Tennessee Valley Trailhead, 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 3:02 PM. The temperature feels like 51.55 with a humidity level of 87 so dress accordingly. Cloud coverage is 71 percent with visibility at 8.5 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling west-southwest at a speed of 5 MPH. At the end of the day don’t miss the sunset at 12:52 AM.