UV Index Today in Loudoun County, Virginia (VA)

The average maximum UV Index today across 37 locations in Loudoun County, Virginia (VA), is 10.1. The highest projected maximum is 10.1 in Leesburg at 1:00 PM EDT, while the lowest projected maximum is 10 in Great Falls at 1:00 PM EDT.

Tomorrow, the average maximum UV Index across those same locations is expected to be 7. The highest projected maximum is 7.7 in Bull Run at 1:00 PM EDT, and the lowest projected maximum is 6.6 in Purcellville at 12:00 PM EDT.