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September Weather in Stone Harbor
Stone Harbor's September 2026 forecast shows daily high temperatures ranging from 66° to 75°, with overnight lows between 56° and 65°. The average high for September is 70° with an average low of 59°. AccuWeather's monthly forecast extends further ahead than any other source, with day-by-day RealFeel® Temperatures giving a complete picture of how September weather will actually feel in Stone Harbor. See also: October | November | December.