If you planning to travel to Whitetail Ski Resort, Mercersburg, 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 12:06 PM. The temperature feels like 42 with a humidity level of 73 so dress accordingly. Cloud coverage is 28 percent with visibility at 14 percent. Today’s UV index is 0, don’t forget the sunscreen if you need it! Today’s winds are traveling west-northwest at a speed of 9 MPH. At the end of the day don’t miss the sunset at 9:50 PM.