As of 9:45 AM CDT on October 5, 2025, all 2 cities in Calhoun County, FL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Altha, FL with a reading of 1.6.
Over the next 24 hours, the highest UV Index reading in Calhoun County, FL is expected to be 4.8 in Altha between 11:00 AM - 12:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |