As of 3:27 PM CDT on May 20, 2026, all 6 cities in Calhoun County, TX in our database have a UV Index reading of Very High. The city with the highest UV Index reading right now is Port O'Connor, TX with a reading of 8.3.
Over the next 24 hours, the highest UV Index reading in Calhoun County, TX is expected to be 8.3 in Port O'Connor 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 |