As of 3:15 PM CDT on June 18, 2026, out of 13 cities in Logan County, IL in our database, 9 cities (69%) have a UV Index reading of Moderate, while 4 cities (31%) have a UV Index reading of Low. The city with the highest UV Index reading right now is Lincoln, IL with a reading of 4.2.
Over the next 24 hours, the highest UV Index reading in Logan County, IL is expected to be 9.9 in Elkhart 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 |