As of 12:57 PM EST on November 11, 2025, all 11 cities in St. Mary's County, MD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Leonardtown, MD with a reading of 2.3.
Over the next 24 hours, the highest UV Index reading in St. Mary's County, MD is expected to be 2.3 in Leonardtown between 12:00 PM - 1:00 PM EST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |