As of 11:58 AM EST on December 4, 2025, all 16 cities in Harford County, MD in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Pylesville, MD with a reading of 1.1.
Over the next 24 hours, the highest UV Index reading in Harford County, MD is expected to be 1.4 in Havre de Grace 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 |