As of 1:33 AM CST on December 11, 2025, all 10 cities in McNairy County, TN in our database have a UV Index reading of 0, indicating no radiation from the sun.
Over the next 24 hours, the highest UV Index reading in McNairy County, TN is expected to be 2.4 in Selmer between 11:00 AM - 12:00 PM CST today.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |