Fairfax County, VA: Current UV Index and Hourly Forecast

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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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Fairfax County, VA as of 10:19 AM EDT, August 28, 2025

Current UV Index in Cities in Fairfax County, VA

10:19 AM EDT, August 28, 2025