Summerland Key - Niles Channel South UV IndexUnited StatesFLLower Keys in Monroe CountySummerland Key - Niles Channel South1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAASummerland Key - Niles Channel South UV forecast issued today at 3:17 pm. Next forecast at approx. 3:17 pm.Get WillyWeather+ to remove ads