Frederick County, MD: Current UV Index and Hourly Forecast

As of 8:49 AM EDT on June 4, 2025, all 27 cities in Frederick County, MD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Green Valley, MD with a reading of 1.1.

Over the next 24 hours, the highest UV Index reading in Frederick County, MD is expected to be 8.9 in Green Valley 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 Frederick County, MD as of 8:49 AM EDT, June 4, 2025

Current UV Index in Cities in Frederick County, MD

8:49 AM EDT, June 4, 2025