Chester County, PA: Current UV Index and Hourly Forecast

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As of 4:35 PM EDT on July 19, 2025, out of 44 cities in Chester County, PA in our database, 43 cities (98%) have a UV Index reading of Moderate, while 1 city (2%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Phoenixville, PA with a reading of 4.9.

Over the next 24 hours, the highest UV Index reading in Chester County, PA is expected to be 9.8 in Oxford between 1:00 PM - 2:00 PM EDT tomorrow.

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Current UV Index in Cities in Chester County, PA

• Atglen - 3.3
• Avondale - 3.8
• Berwyn - 3.4
• Chadds Ford - 2.4
• Chesterbrook - 3.4
• Cheyney University - 3.4
• Coatesville - 4
• Cochranville - 3.3
• Devon - 3.4
• Dilworthtown - 3.4
• Downingtown - 4
• Eagle - 4
• Eagleview - 4
• Elverson - 4.9
• Exton - 4
• Frazer - 3.4
• Glenmoore - 4
• Hamorton - 3.8
• Hayti - 4
• Kenilworth - 4.9
• Kennett Square - 3.8
• Kimberton - 4.9
• Lincoln University - 4.8
• Lionville - 4
• Malvern - 3.4
• Marshallton - 4
• Modena - 4
• Nottingham - 4.8
• Oxford - 4.8
• Paoli - 3.4
• Parkesburg - 3.3
• Phoenixville - 4.9
• Pomeroy - 3.3
• Pughtown - 4.9
• Sadsburyville - 3.3
• South Coatesville - 4
• South Pottstown - 4.9
• Spring City - 4.9
• Thorndale - 4
• Toughkenamon - 3.8
• Unionville - 4
• West Chester - 3.4
• West Grove - 3.8
• Westwood - 4