UV Index Today in St. Louis city, Missouri (MO)
Wednesday, November 4, 2026 -11:19 AM CST (GMT-6)
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The average maximum UV Index today across 17 locations in St. Louis city, Missouri (MO), is 2.4. The highest projected maximum is 2.4 in St. Louis at 12:00 PM CST, while the lowest projected maximum is 2.4 in St. Louis at 12:00 PM CST.
Tomorrow, the average maximum UV Index across those same locations is expected to be 3.1. The highest projected maximum is 3.2 in East St. Louis at 12:00 PM CST, and the lowest projected maximum is 3.1 in St. Louis at 12:00 PM CST.
17 Places in St. Louis city, Missouri (MO)
Maximum UV Index Today