If you planning to travel to National Firearms Museum, Fairfax, Virginia, 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 11:23 AM. The temperature feels like 57.099999999999994 with a humidity level of 62 so dress accordingly. Cloud coverage is 0 percent with visibility at 15 percent. Today’s UV index is 5, don’t forget the sunscreen if you need it! Today’s winds are traveling west at a speed of 7 MPH. At the end of the day don’t miss the sunset at 10:24 PM.