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 yesterday at 3:19 pm. Next forecast at approx. 3:19 pm.Get an account to remove ads