As of 3:27 PM CDT on May 20, 2026, all 4 cities in Ellis County, OK in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Arnett, OK with a reading of 8.2.
Over the next 24 hours, the highest UV Index reading in Ellis County, OK is expected to be 8.2 in Arnett between 3:00 PM - 4:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |