Brilliant, Ohio is a small village located in Jefferson County, with a population of around 1,000 people. The climate in Brilliant is classified as humid continental, with four distinct seasons. Summers are warm and humid, with average temperatures in the mid-80s. Winters are cold and snowy, with average temperatures in the mid-20s. The village is situated close to the Ohio River, and the hydrology is dominated by the river's flow. The river also offers a variety of outdoor recreation opportunities, such as fishing, boating, and kayaking. Additionally, there are several parks in the area that provide opportunities for hiking and picnicking.