As of 4:11 PM CDT on September 20, 2026, out of 4 cities in Callahan County, TX in our database, 2 cities (50%) have a UV Index reading of Moderate, while 2 cities (50%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Clyde, TX with a reading of 2.6.
Over the next 24 hours, the highest UV Index reading in Callahan County, TX is expected to be 9.2 in Cross Plains between 2:00 PM - 3:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |