As of 5:04 PM CDT on May 11, 2026, all 2 cities in Madison County, TX in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Madisonville, TX with a reading of 3.2.
Over the next 24 hours, the highest UV Index reading in Madison County, TX is expected to be 9.8 in Madisonville 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 |