Rialto Municipal Airport (Miro Field) UV IndexUnited StatesCASan Bernardino CountyRialto Municipal Airport (Miro Field)1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAARialto Municipal Airport (Miro Field) UV forecast issued yesterday at 12:17 pm. Next forecast at approx. 12:17 pm.Get WillyWeather+ to remove ads