As of 11:41 PM EDT on May 21, 2025, all 131 cities in Nassau County, NY in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in Nassau County, NY is expected to be 1.4 in Valley Stream between 12:00 PM - 1:00 PM EDT tomorrow.
Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
---|---|---|---|---|---|
Color | |||||
Risk | Low | Moderate | High | Very High | Extreme |