Mercer County, PA: Current UV Index and Hourly Forecast

As of 8:56 AM EDT on June 25, 2025, all 18 cities in Mercer County, PA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Grove City, PA with a reading of 1.2.

Over the next 24 hours, the highest UV Index reading in Mercer County, PA is expected to be 10.7 in New Lebanon between 1:00 PM - 2:00 PM EDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in Mercer County, PA as of 8:56 AM EDT, June 25, 2025

Current UV Index in Cities in Mercer County, PA

8:56 AM EDT, June 25, 2025