As of 3:13 AM CST on January 18, 2026, all 9 cities in Gregg County, TX 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 Gregg County, TX is expected to be 3.1 in Longview between 12:00 PM - 1:00 PM CST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |