Loudoun County, VA: Current UV Index and Hourly Forecast

As of 4:00 AM EDT on June 25, 2025, all 29 cities in Loudoun County, VA in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Loudoun County, VA is expected to be 10 in Purcellville between 1:00 PM - 2:00 PM EDT today.

Search Cities in Loudoun County, VA

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Loudoun County, VA as of 4:00 AM EDT, June 25, 2025

Current UV Index in Cities in Loudoun County, VA

4:00 AM EDT, June 25, 2025