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

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As of 4:12 AM EST on January 5, 2026, all 24 cities in Prince William 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 Prince William County, VA is expected to be 1.7 in Gainesville between 12:00 PM - 1:00 PM EST today.

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Current UV Index in Cities in Prince William County, VA

• Buckhall - 0
• Bull Run - 0
• Bull Run Mountain Estates - 0
• Cherry Hill - 0
• County Center - 0
• Dale City - 0
• Dumfries - 0
• Gainesville - 0
• Haymarket - 0
• Independent Hill - 0
• Innovation - 0
• Lake Ridge - 0
• Linton Hall - 0
• Loch Lomond - 0
• Montclair - 0
• Nokesville - 0
• Occoquan - 0
• Potomac Mills - 0
• Quantico - 0
• Quantico Base - 0
• Sudley - 0
• Triangle - 0
• Woodbridge - 0
• Yorkshire - 0