As of 10:35 AM EDT on April 4, 2025, all 1 cities in Philadelphia County, PA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Philadelphia, PA with a reading of 1.7.
Over the next 24 hours, the highest UV Index reading in Philadelphia County, PA is expected to be 4.3 in Philadelphia between 2:00 PM - 3:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |