UV Index Today in Jefferson County, Texas (TX)
Sunday, September 20, 2026 -11:23 AM CDT (GMT-5)
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The average maximum UV Index today across 13 locations in Jefferson County, Texas (TX), is 9.1. The highest projected maximum is 9.2 in Nederland at 1:00 PM CDT, while the lowest projected maximum is 8.9 in Winnie at 1:00 PM CDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 8.7. The highest projected maximum is 8.8 in Beaumont at 1:00 PM CDT, and the lowest projected maximum is 8.7 in Nederland at 1:00 PM CDT.
13 Places in Jefferson County, Texas (TX)
Maximum UV Index Today