As of 4:04 PM EDT on July 15, 2025, out of 1772 cities in Pennsylvania in our database, 1249 cities (70%) have a UV Index reading of Moderate, 375 cities (21%) have a UV Index reading of High, while 148 cities (8%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Hermitage, PA with a reading of 5.9.
Over the next 24 hours, the highest UV Index reading in Pennsylvania is expected to be 9.9 in Stewartstown between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |