As of 1:27 PM EDT on September 20, 2026, out of 13 cities in Greene County, OH in our database, 12 cities (92%) have a UV Index reading of Low, while 1 city (8%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Spring Valley, OH with a reading of 4.6.
Over the next 24 hours, the highest UV Index reading in Greene County, OH is expected to be 6.6 in Spring Valley between 2:00 PM - 3:00 PM EDT today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |