Fairfax County, VA: Current UV Index and Hourly Forecast

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As of 10:19 AM EDT on August 28, 2025, all 69 cities in Fairfax County, VA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Centreville, VA with a reading of 2.8.

Over the next 24 hours, the highest UV Index reading in Fairfax County, VA is expected to be 7.3 in Centreville between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Fairfax County, VA

• Annandale - 2.8
• Bailey's Crossroads - 2.8
• Belle Haven - 2.6
• Braddock - 2.8
• Bull Run - 2.8
• Burke - 2.8
• Burke Centre - 2.8
• Centreville - 2.8
• Chantilly - 2.6
• Clifton - 2.8
• Crosspointe - 2.8
• Difficult Run - 2.7
• Dranesville - 2.7
• Dunn Loring - 2.7
• Fair Lakes - 2.8
• Fair Oaks - 2.8
• Fairfax Station - 2.8
• Floris - 2.6
• Fort Belvoir - 2.8
• Fort Hunt - 2.6
• Franconia - 2.8
• Franklin Farm - 2.6
• George Mason - 2.8
• Great Falls - 2.7
• Great Falls Crossing - 2.7
• Greenbriar - 2.8
• Groveton - 2.6
• Hayfield - 2.8
• Herndon - 2.6
• Huntington - 2.6
• Hutchison - 2.6
• Hybla Valley - 2.6
• Idylwood - 2.7
• Kings Park - 2.8
• Kings Park West - 2.8
• Kingstowne - 2.8
• Lake Barcroft - 2.8
• Laurel Hill - 2.8
• Lincolnia - 2.8
• Long Branch - 2.8
• Lorton - 2.8
• Mantua - 2.8
• Mason Neck - 2.8
• McLean - 2.7
• McNair - 2.6
• Merrifield - 2.8
• Mount Vernon - 2.6
• Navy - 2.6
• Newington - 2.8
• Newington Forest - 2.8
• North Springfield - 2.8
• Oakton - 2.7
• Pimmit Hills - 2.7
• Ravensworth - 2.8
• Reston - 2.7
• Rose Hill - 2.6
• Seven Corners - 2.8
• South Run - 2.8
• Springfield - 2.8
• Sully Square - 2.6
• Tysons - 2.7
• Union Mill - 2.8
• Vienna - 2.7
• Wakefield - 2.8
• West Falls Church - 2.8
• West Springfield - 2.8
• Wolf Trap - 2.7
• Woodburn - 2.8
• Woodlawn - 2.6