UV Index Today in Westmoreland County, Pennsylvania (PA)

The average maximum UV Index today across 84 locations in Westmoreland County, Pennsylvania (PA), is 5.4. The highest projected maximum is 6.3 in Derry at 1:00 PM EDT, while the lowest projected maximum is 2.9 in St. Clair at 11:00 AM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 0.9. The highest projected maximum is 2.7 in Ligonier at 1:00 PM EDT, and the lowest projected maximum is 0.4 in Washington at 10:00 AM EDT.