As of 2:28 PM CDT on September 8, 2026, out of 11 cities in Fremont County, IA in our database, 9 cities (82%) have a UV Index reading of Very High, while 2 cities (18%) have a UV Index reading of High. The city with the highest UV Index reading right now is Sidney, IA with a reading of 7.6.
Over the next 24 hours, the highest UV Index reading in Fremont County, IA is expected to be 7.6 in Sidney between 2:00 PM - 3:00 PM CDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |