Prince William County, VA: Current UV Index and Hourly Forecast

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As of 6:42 PM EDT on March 15, 2026, all 24 cities in Prince William County, VA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Dale City, VA with a reading of 0.1.

Over the next 24 hours, the highest UV Index reading in Prince William County, VA is expected to be 4 in Dale City between 2:00 PM - 3:00 PM EDT tomorrow.

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Current UV Index in Cities in Prince William County, VA

• Buckhall - 0.1
• Bull Run - 0.1
• Bull Run Mountain Estates - 0.1
• Cherry Hill - 0.1
• County Center - 0.1
• Dale City - 0.1
• Dumfries - 0.1
• Gainesville - 0.1
• Haymarket - 0.1
• Independent Hill - 0.1
• Innovation - 0.1
• Lake Ridge - 0.1
• Linton Hall - 0.1
• Loch Lomond - 0.1
• Montclair - 0.1
• Nokesville - 0.1
• Occoquan - 0.1
• Potomac Mills - 0.1
• Quantico - 0.1
• Quantico Base - 0.1
• Sudley - 0.1
• Triangle - 0.1
• Woodbridge - 0.1
• Yorkshire - 0.1