Chester County, PA: Current UV Index and Hourly Forecast

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As of 4:23 PM EDT on April 18, 2026, all 44 cities in Chester County, PA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Parkesburg, PA with a reading of 3.9.

Over the next 24 hours, the highest UV Index reading in Chester County, PA is expected to be 3.9 in Parkesburg between 4:00 PM - 5:00 PM EDT today.

Search Cities in Chester County, PA

Current UV Index in Cities in Chester County, PA

• Atglen - 3.9
• Avondale - 3.7
• Berwyn - 3.8
• Chadds Ford - 3.7
• Chesterbrook - 3.8
• Cheyney University - 3.8
• Coatesville - 3.8
• Cochranville - 3.9
• Devon - 3.8
• Dilworthtown - 3.8
• Downingtown - 3.8
• Eagle - 3.8
• Eagleview - 3.8
• Elverson - 3.9
• Exton - 3.8
• Frazer - 3.8
• Glenmoore - 3.8
• Hamorton - 3.7
• Hayti - 3.8
• Kenilworth - 3.9
• Kennett Square - 3.7
• Kimberton - 3.8
• Lincoln University - 3.8
• Lionville - 3.8
• Malvern - 3.8
• Marshallton - 3.8
• Modena - 3.8
• Nottingham - 3.8
• Oxford - 3.8
• Paoli - 3.8
• Parkesburg - 3.9
• Phoenixville - 3.8
• Pomeroy - 3.9
• Pughtown - 3.9
• Sadsburyville - 3.9
• South Coatesville - 3.8
• South Pottstown - 3.9
• Spring City - 3.8
• Thorndale - 3.8
• Toughkenamon - 3.7
• Unionville - 3.8
• West Chester - 3.8
• West Grove - 3.7
• Westwood - 3.8