Clarksville/Red River County-J D Trissell Field UV IndexUnited StatesTXRed River CountyClarksville/Red River County-J D Trissell Field1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAClarksville/Red River County-J D Trissell Field UV forecast issued yesterday at 2:18 pm. Next forecast at approx. 2:18 pm. UV IndexGet WillyWeather+ to remove ads