Frederick County, MD: Current UV Index and Hourly Forecast

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As of 11:14 AM EST on January 13, 2026, 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 1.7.

Over the next 24 hours, the highest UV Index reading in Frederick County, MD is expected to be 2 in Green Valley between 12:00 PM - 1:00 PM EST today.

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Current UV Index in Cities in Frederick County, MD

• Adamstown - 1.7
• Ballenger Creek - 1.6
• Bartonsville - 1.6
• Braddock Heights - 1.6
• Brunswick - 1.7
• Buckeystown - 1.7
• Burkittsville - 1.6
• Emmitsburg - 1.5
• Frederick - 1.6
• Graceham - 1.6
• Green Valley - 1.7
• Jefferson - 1.7
• Lewistown - 1.6
• Libertytown - 1.6
• Linganore - 1.6
• Middletown - 1.6
• Monrovia - 1.7
• Myersville - 1.6
• New Market - 1.6
• Point of Rocks - 1.7
• Rosemont - 1.7
• Sabillasville - 1.5
• Spring Ridge - 1.6
• Thurmont - 1.6
• Urbana - 1.7
• Walkersville - 1.6
• Woodsboro - 1.6