Fort Jefferson Seaplane and Helicopter (Beach) UV IndexUnited StatesFLLower Keys in Monroe CountyFort Jefferson Seaplane and Helicopter (Beach)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAFort Jefferson Seaplane and Helicopter (Beach) UV forecast issued today at 3:17 pm. Next forecast at approx. 3:17 pm.Get WillyWeather+ to remove ads