Loudoun County, VA: Current UV Index and Hourly Forecast

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As of 1:17 PM EDT on August 8, 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 Leesburg, VA with a reading of 8.2.

Over the next 24 hours, the highest UV Index reading in Loudoun County, VA is expected to be 8.2 in Leesburg between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Loudoun County, VA

• Aldie - 8.2
• Arcola - 8.2
• Ashburn - 8.2
• Belmont - 8.2
• Brambleton - 8.2
• Broadlands - 8.2
• Cascades - 8.2
• Countryside - 8.2
• Dulles Town Center - 8.2
• Goose Creek Village - 8.2
• Hamilton - 8.2
• Hillsboro - 8.2
• Kincora - 8.2
• Lansdowne - 8.2
• Leesburg - 8.2
• Loudoun Valley Estates - 8.2
• Lovettsville - 8.2
• Lowes Island - 8.2
• Middleburg - 8.2
• Oak Grove - 8.2
• One Loudoun - 8.2
• Purcellville - 8.2
• Round Hill - 8.2
• South Riding - 8.2
• Sterling - 8.2
• Stone Ridge - 8.2
• Sugarland Run - 8.2
• University Center - 8.2
• Waterford - 8.2