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 11:23 AM and don’t miss the sunset at 10:19 PM. Today’s winds are traveling southwest at a speed of 5 MPH. The temperature feels like 62 with a humidity level of 71. Cloud coverage is 5 percent with 15 percent visibility. Today’s UV index is 4 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.