As of 1:49 PM EST on November 6, 2025, all 45 cities in Middlesex County, NJ in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Princeton Meadows, NJ with a reading of 2.4.
Over the next 24 hours, the highest UV Index reading in Middlesex County, NJ is expected to be 2.5 in Princeton Meadows between 12:00 PM - 1:00 PM EST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |