St. Clair County, MO: Current UV Index and Hourly Forecast

As of 11:57 PM CDT on October 8, 2025, all 7 cities in St. Clair County, MO 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 St. Clair County, MO is expected to be 5.5 in Appleton City between 1:00 PM - 2:00 PM CDT tomorrow.

Search Cities in St. Clair County, MO

UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in St. Clair County, MO as of 11:57 PM CDT, October 8, 2025

Current UV Index in Cities in St. Clair County, MO

11:57 PM CDT, October 8, 2025