St. Louis City, MO: Current UV Index and Hourly Forecast

As of 3:33 AM CDT on October 6, 2025, all 1 cities in St. Louis City, 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. Louis City, MO is expected to be 5.6 in St. Louis between 1:00 PM - 2:00 PM CDT today.

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UV Index Risk Levels
Range0 - 23 - 56 - 78 - 1011+
Color
RiskLowModerateHighVery HighExtreme
UV Index in St. Louis City, MO as of 3:33 AM CDT, October 6, 2025

Current UV Index in Cities in St. Louis City, MO

3:33 AM CDT, October 6, 2025