Three-year-old Addison Mathis cools off in 90-degree temperatures Thursday at the home of her grandparents, Marianne and Jon Windham, on Estelle Drive in Vicksburg. Addison was playing in the kiddie pool with her sister, Sydney, 2, and her mother, Andrea Mathis. Friday’s forecast calls for partly cloudy skies with a high temperature of 95 degrees. (The Vicksburg Post/MELANIE DUNCAN)