As of 2:04 PM CDT on September 17, 2026, out of 26 cities in Dallas County, TX in our database, 14 cities (54%) have a UV Index reading of High, 10 cities (38%) have a UV Index reading of Very High, while 2 cities (8%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Carrollton, TX with a reading of 7.8.
Over the next 24 hours, the highest UV Index reading in Dallas County, TX is expected to be 8.3 in Mesquite between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |