St. Mary's County, MD: Current UV Index and Hourly Forecast

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As of 3:33 PM EDT on April 1, 2025, all 11 cities in St. Mary's County, MD in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is St. George Island, MD with a reading of 4.4.

Over the next 24 hours, the highest UV Index reading in St. Mary's County, MD is expected to be 7 in St. George Island between 1:00 PM - 2:00 PM EDT tomorrow.

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Current UV Index in Cities in St. Mary's County, MD

• California - 4.3
• Callaway - 4.3
• Charlotte Hall - 4.3
• Golden Beach - 4.3
• Leonardtown - 4.3
• Lexington Park - 4.3
• Mechanicsville - 4.3
• Piney Point - 4.3
• St. George Island - 4.4
• Tall Timbers - 4.3
• Wildewood - 4.3