UV Index Today in Loudoun County, Virginia (VA)
Tuesday, April 7, 2026 - 4:50 AM EDT (GMT-4)
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The average maximum UV Index today across 37 locations in Loudoun County, Virginia (VA), is 5.9. The highest projected maximum is 6.1 in Purcellville at 1:00 PM EDT, while the lowest projected maximum is 5.8 in Great Falls at 1:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 6.2. The highest projected maximum is 6.2 in Leesburg at 1:00 PM EDT, and the lowest projected maximum is 6.2 in Leesburg at 1:00 PM EDT.
37 Places in Loudoun County, Virginia (VA)
Maximum UV Index Today