As of 6:51 AM EDT on July 15, 2025, all 11 cities in St. Mary's County, MD in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in St. Mary's County, MD is expected to be 10.1 in California between 1:00 PM - 2:00 PM EDT today.
Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
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Color | |||||
Risk | Low | Moderate | High | Very High | Extreme |