As of 10:58 AM CST on December 4, 2025, all 5 cities in Columbia County, AR in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Emerson, AR with a reading of 0.2.
Over the next 24 hours, the highest UV Index reading in Columbia County, AR is expected to be 0.6 in Magnolia between 9:00 AM - 10:00 AM CST tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |