As of 2:17 PM EDT on September 7, 2025, out of 22 cities in Hartford County, CT in our database, 16 cities (73%) have a UV Index reading of Low, while 6 cities (27%) have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Simsbury Center, CT with a reading of 3.8.
Over the next 24 hours, the highest UV Index reading in Hartford County, CT is expected to be 6.6 in Hartford between 1:00 PM - 2:00 PM EDT tomorrow.
| Range | 0 - 2 | 3 - 5 | 6 - 7 | 8 - 10 | 11+ |
|---|---|---|---|---|---|
| Color | |||||
| Risk | Low | Moderate | High | Very High | Extreme |