As of 8:42 AM CST on January 23, 2026, all 13 cities in Logan County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Lincoln, IL with a reading of 0.2.
Over the next 24 hours, the highest UV Index reading in Logan County, IL is expected to be 1.9 in Lincoln between 1:00 PM - 2:00 PM CST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |