As of 3:10 PM CDT on August 20, 2026, out of 8 cities in Lyon County, IA in our database, 5 cities (63%) have a UV Index reading of Moderate, 2 cities (25%) have a UV Index reading of Low, while 1 city (13%) have a UV Index reading of High. The city with the highest UV Index reading right now is George, IA with a reading of 5.5.
Over the next 24 hours, the highest UV Index reading in Lyon County, IA is expected to be 7.1 in Inwood between 1:00 PM - 2:00 PM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |