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

As of 3:03 AM CST on November 21, 2024, all 98 cities in St. Louis 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. Louis County, MO is expected to be 2.4 in Florissant between 12:00 PM - 1:00 PM CST today.

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UV Index Risk Levels
Range 0 - 23 - 56 - 78 - 1011+
Color
Risk LowModerateHighVery HighExtreme
UV Index in St. Louis County, MO as of 3:03 AM CST, November 21, 2024

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

3:03 AM CST, November 21, 2024