In a small bowl, whisk together the sour cream, mayonnaise, dill, vinegar, lemon juice, salt, and pepper. Set aside.
1/2 cup sour cream, 1/4 cup mayonnaise, 1/4 cup fresh dill, 2 tablespoons vinegar, 1/2 tablespoon lemon juice, 1 teaspoon kosher salt, 1/4 teaspoon black pepper