UV Index Today in Loudoun County, Virginia (VA)
Friday, May 22, 2026 -2:40 PMEDT (GMT-4)
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The average maximum UV Index today across 37 locations in Loudoun County, Virginia (VA), is 0.8. The highest projected maximum is 0.8 in Leesburg at 1:00 PM EDT, while the lowest projected maximum is 0.5 in Bull Run at 12:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 0.6. The highest projected maximum is 0.8 in Purcellville at 12:00 PM EDT, and the lowest projected maximum is 0.6 in Leesburg at 1:00 PM EDT.
37 Places in Loudoun County, Virginia (VA)
Maximum UV Index Today