UV Index Today in New Castle County, Delaware (DE)
Friday, May 22, 2026 -2:39 PMEDT (GMT-4)
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The average maximum UV Index today across 27 locations in New Castle County, Delaware (DE), is 4.2. The highest projected maximum is 6 in Wilmington at 1:00 PM EDT, while the lowest projected maximum is 1.3 in Smyrna at 12:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 0.7. The highest projected maximum is 1 in Smyrna at 2:00 PM EDT, and the lowest projected maximum is 0.6 in Newark at 11:00 AM EDT.
27 Places in New Castle County, Delaware (DE)
Maximum UV Index Today