If you planning to travel to Rancho San Antonio County Park, Cupertino, 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 2:48 PM. The temperature feels like 48.1 with a humidity level of 75 so dress accordingly. Cloud coverage is 20 percent with visibility at 14 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling northwest at a speed of 8 MPH. At the end of the day don’t miss the sunset at 12:57 AM.