As of 8:12 PM EDT on September 17, 2025, all 10 cities in Cobb County, GA 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 Cobb County, GA is expected to be 7.5 in Marietta between 2:00 PM - 3:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |