Falls Church, Virginia experiences four distinct seasons with hot and humid summers, cool winters, and moderate temperatures in the spring and fall. The city is located in the Potomac River watershed, which supplies drinking water to the area. However, there is concern about the presence of lead, mercury, and other contaminants in the water. Falls Church has several parks and outdoor recreation opportunities including Cherry Hill Park, which features camping and hiking trails. The W&OD Trail and Custis Trail are popular for biking and running, while the nearby Potomac River offers kayaking and paddleboarding.