UV Index Today in South Dakota (SD)
Tuesday, October 13, 2026 -2:24 PM CDT (GMT-5)
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The average maximum UV Index today across 189 locations in South Dakota (SD), is 3.4. The highest projected maximum is 4.6 in Big Sioux at 1:00 PM CDT, while the lowest projected maximum is 0.7 in Faulkton at 12:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 3.8. The highest projected maximum is 4.2 in Rosebud at 2:00 PM CDT, and the lowest projected maximum is 2.2 in Custer at 1:00 PM CDT.
66 Counties in South Dakota (SD)
Average Maximum UV Index Today
151 Places in South Dakota (SD)
Maximum UV Index Today