As of 11:36 AM EDT on April 14, 2026, out of 12 cities in Jefferson County, PA in our database, 11 cities (92%) have a UV Index reading of Low, while 1 city (8%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Sykesville, PA with a reading of 2.5.
Over the next 24 hours, the highest UV Index reading in Jefferson County, PA is expected to be 5.3 in Sykesville between 3:00 PM - 4:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |