Loudoun County, VA: Current UV Index and Hourly Forecast

As of 1:20 PM EDT on June 4, 2025, all 29 cities in Loudoun County, VA in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Lowes Island, VA with a reading of 9.

Over the next 24 hours, the highest UV Index reading in Loudoun County, VA is expected to be 9 in Lowes Island between 1:00 PM - 2:00 PM EDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Loudoun County, VA as of 1:20 PM EDT, June 4, 2025

Current UV Index in Cities in Loudoun County, VA

1:20 PM EDT, June 4, 2025