UV Index Today in Howard County, Maryland (MD)
Tuesday, April 7, 2026 - 4:50 AM EDT (GMT-4)
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The average maximum UV Index today across 22 locations in Howard County, Maryland (MD), is 5.8. The highest projected maximum is 6 in Eldersburg at 1:00 PM EDT, while the lowest projected maximum is 5.8 in Columbia at 1:00 PM EDT.
Tomorrow, the average maximum UV Index across those same locations is expected to be 6.1. The highest projected maximum is 6.2 in Green Valley at 1:00 PM EDT, and the lowest projected maximum is 6.1 in Columbia at 1:00 PM EDT.
22 Places in Howard County, Maryland (MD)
Maximum UV Index Today