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

• USA →
• Delaware →
• New Castle County

As of 10:58 PM EST on December 13, 2025, all 26 cities in New Castle County, DE 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 New Castle County, DE is expected to be 1.9 in Newark between 12:00 PM - 1:00 PM EST tomorrow.

Search Cities in New Castle County, DE

Current UV Index in Cities in New Castle County, DE

• Arden - 0
• Ardencroft - 0
• Ardentown - 0
• Bear - 0
• Bellefonte - 0
• Brookside - 0
• Claymont - 0
• Delaware City - 0
• Edgemoor - 0
• Elsmere - 0
• Glasgow - 0
• Greenville - 0
• Hockessin - 0
• Middletown - 0
• New Castle - 0
• Newark - 0
• Newport - 0
• North Star - 0
• Odessa - 0
• Pike Creek - 0
• Pike Creek Valley - 0
• Port Penn - 0
• St. Georges - 0
• Townsend - 0
• Wilmington - 0
• Wilmington Manor - 0