If you planning to travel to Johnson House Historical Site, Philadelphia, Pennsylvania, 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 11:07 AM. The temperature feels like 45 with a humidity level of 74 so dress accordingly. Cloud coverage is 57 percent with visibility at 12 percent. Today’s UV index is 3, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 10 MPH. At the end of the day don’t miss the sunset at 11:10 PM.