Howard Slough Waterfowl Management Area UV IndexUnited StatesUTDavis CountyHoward Slough Waterfowl Management Area1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAHoward Slough Waterfowl Management Area UV forecast issued yesterday at 1:17 pm. Next forecast at approx. 1:17 pm.Get WillyWeather+ to remove ads