Logan / Ogontz / Fern Rock UV IndexUnited StatesPAPhiladelphia CountyLogan / Ogontz / Fern Rock1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAALogan / Ogontz / Fern Rock UV forecast issued today at 2:17 pm. Next forecast at approx. 2:17 pm.Get WillyWeather+ to remove ads