Traveling to Great Falls Park, McLean, Virginia? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 12:06 PM and don’t miss the sunset at 9:48 PM. Today’s winds are traveling west-northwest at a speed of 10 MPH. The temperature feels like 47 with a humidity level of 65. Cloud coverage is 20 percent with 16.6 percent visibility. Today’s UV index is 3 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.