New Castle County, DE: Current UV Index and Hourly Forecast

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As of 1:35 PM EDT on April 21, 2025, out of 26 cities in New Castle County, DE in our database, 24 cities (92%) have a UV Index reading of High, while 2 cities (8%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Newark, DE with a reading of 6.7.

Over the next 24 hours, the highest UV Index reading in New Castle County, DE is expected to be 7.1 in Delaware City between 12:00 PM - 1:00 PM EDT tomorrow.

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Current UV Index in Cities in New Castle County, DE

• Arden - 6.1
• Ardencroft - 6.1
• Ardentown - 6.1
• Bear - 6.1
• Bellefonte - 6.1
• Brookside - 6.7
• Claymont - 6.1
• Delaware City - 2.7
• Edgemoor - 6.1
• Elsmere - 6.1
• Glasgow - 6.1
• Greenville - 6.1
• Hockessin - 6.7
• Middletown - 6.1
• New Castle - 6.1
• Newark - 6.7
• Newport - 6.1
• North Star - 6.7
• Odessa - 6.1
• Pike Creek - 6.7
• Pike Creek Valley - 6.7
• Port Penn - 2.7
• St. Georges - 6.1
• Townsend - 6.1
• Wilmington - 6.1
• Wilmington Manor - 6.1