If you planning to travel to Gaithersburg, MD, United States (GAI-Montgomery County Airpark), 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 11:05 AM. The temperature feels like 45.55 with a humidity level of 79 so dress accordingly. Cloud coverage is 99 percent with visibility at 12.3 percent. Today’s UV index is 1, don’t forget the sunscreen if you need it! Today’s winds are traveling north-northeast at a speed of 12 MPH. At the end of the day don’t miss the sunset at 10:46 PM.