UV Index Today in Delaware County, Pennsylvania (PA)

The average maximum UV Index today across 72 locations in Delaware County, Pennsylvania (PA), is 9.5. The highest projected maximum is 9.6 in Chester at 1:00 PM EDT, while the lowest projected maximum is 9.5 in Philadelphia at 1:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 7.6. The highest projected maximum is 7.7 in Concord at 1:00 PM EDT, and the lowest projected maximum is 7.5 in Philadelphia at 1:00 PM EDT.