UV Index Today in Loudoun County, Virginia (VA)
Thursday, November 5, 2026 -3:32 PM EST (GMT-5)
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The average maximum UV Index today across 37 locations in Loudoun County, Virginia (VA), is 2.1. The highest projected maximum is 3 in Bull Run at 1:00 PM EST, while the lowest projected maximum is 1.7 in Great Falls at 2:00 PM EST.
Tomorrow, the average maximum UV Index across those same locations is expected to be 1.9. The highest projected maximum is 2.5 in Purcellville at 12:00 PM EST, and the lowest projected maximum is 1 in Bull Run at 1:00 PM EST.
37 Places in Loudoun County, Virginia (VA)
Maximum UV Index Today