As of 11:33 AM CDT on June 4, 2025, all 6 cities in Putnam County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Magnolia, IL with a reading of 1.3.
Over the next 24 hours, the highest UV Index reading in Putnam County, IL is expected to be 4.2 in Granville between 10:00 AM - 11:00 AM CDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |