If you planning to travel to Swatara State Park, Jonestown, 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 10:09 AM. The temperature feels like 59.099999999999994 with a humidity level of 34 so dress accordingly. Cloud coverage is 6 percent with visibility at 14.9 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northwest at a speed of 12 MPH. At the end of the day don’t miss the sunset at 11:59 PM.