If you planning to travel to St. Mary Square, San Francisco, 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 3:13 PM. The temperature feels like 50 with a humidity level of 72 so dress accordingly. Cloud coverage is 61 percent with visibility at 14.6 percent. Today’s UV index is 2, don’t forget the sunscreen if you need it! Today’s winds are traveling south at a speed of 5 MPH. At the end of the day don’t miss the sunset at 1:34 AM.